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Found 159 results

  1. Version 1.0.0

    22 downloads

    The sternum is formed by three bones; the manubrium, the sternal body and the xiphoid process (xiphisternum). These bones articulate together by hyaline cartilage with a fibro-cartilaginous disc to form the anterior and midline portion of the chest wall. The has many articulations, where the manubrium articulates with the first rib and the clavicle while the sternal body articulates with the second to seventh ribs as well as the costal cartilages. This 3D model was created from the file STS_044. The source CT scan used to create this model can be found here.

    Free

  2. Version 1.0.0

    6 downloads

    The dorsal (thoracic) spine forms the middle portion of the vertebral column extending below the seventh cervical vertebra to above the first lumbar vertebra. The dorsal spine is formed by twelve vertebral bodies. The vertebrae forming the dorsal spine are unique in shape as they are the only vertebral bodies articulating with ribs. This model shows a common abnormal lateral curvature called scoliosis. This 3D model was created from the file STS_044. The source CT scan used to create this model can be found here.

    Free

  3. Version 1.0.0

    2 downloads

    The chest wall (thoracic cage) is composed by twelve pairs of ribs laterally and the sternum anteriorly. The ribs are attached to the dorsal vertebrae (thoracic spine) posteriorly and along their costal cartilage to the sternum. The thoracic cage main function is to protect the vital chest organs such as the heart and lungs. This model includes parts of the scapula and clavicle, the dorsal spines included show some degree of scoliosis. This 3D model was created from the file STS_044. The source scan can be found here.

    Free

  4. Version 1.0.0

    25 downloads

    The cervical spine is the upper most spines forming the spinal column, extending from the skull base to the level of the thoracic vertebra (the spines with attached ribs). The cervical spines are usually seven and the main function is to support the skull and to protect the spinal cord. Apart from the first cervical vertebra (atlas) and the second vertebra (axis), the other vertebral bodies share a general anatomical appearance: Oval shaped vertebral bodies with wide vertebral arch, large vertebral foramina and long spinous processes. This particular model shows parts of the mandible as well as the hyoid bone. This 3D model was created from the file STS_044. The source scan used to create this file can be found here.

    Free

  5. Version 1.0.0

    48 downloads

    The knee joint is formed by three bones: the femur, the tibia and the patella. the knee joint is the largest synovial joint and provides the flexion and extension movements of the leg as well as relative medial and lateral rotations while in relative flexion. The knee joint articulations are two condylar joints between the femur and the tibia as well as a joint between the patella and the femur. Although the fibula is closely related to the knee joint but it doesn't share in articulation. The knee joint is also formed by some ligaments and cartilage called (menisci) which are best imaged by MRI. This 3D model was created from the file STS_045. The source scan be be found here.

    Free

  6. Version 1.0.0

    5 downloads

    This 3D model represents a case of low grade myxoid liposarcoma affecting the right thigh muscle of a 46 years old male. The model shows a comparison of both lower limbs muscle with a notable enlargement / swelling of the right thigh muscles. The tumor is not causing a significant muscular deformity, therefor a cross sectional CT image is attached showing the lesion in axial, coronal and sagittal planes. Myxoid liposarcoma is the second commonest for of liposarcoma and usually represents an intermediate grade. Liposarcomas in general are mostly seen in extremities and the most common affected muscles are of the thigh. This 3D model was created from the file STS_044. The source scan can be found here.

    Free

  7. Version 1.0.0

    9 downloads

    This 3D model represents a case of high grade extraskeletal osteosarcoma affecting the left adductor muscle of a 27 years old male. The patient was treated by surgical excision follower by chemotherapy. A cross sectional CT image is attached showing the lesion in axial, coronal and sagittal planes. Extraskeletal osteosarcoma (ESOS) is one of the rare malignant neoplasms that affects the mesenchymal tissues such as the retroperitoneum as well as the soft tissue of the extremities with no significant connection to the related bones. Extraskeletal osteosarcoma usually affects people between 40 years and 80 years and is more common in males with a documented risk factor which is radiation exposure. The common presentation is enlarged or swollen soft tissue which could be painful or not. Extraskeletal osteosarcoma is diagnosed by plain x-ray, CT or MRI as the soft tissue shows variable calcification. The most common affected sites are the lower extremities followed by upper extremities and retroperitoneum. Most of patients are presented with metastasis at time of diagnosis which leads to a generally poor prognosis. The usual treatment is surgical excision of the primary tumor as the tumor is insensitive to chemotherapy or radiotherapy. This 3D model was created from the file STS_045. The source scan can be found here.

    Free

  8. Version 1.0.0

    7 downloads

    This 3D model represents a case of high grade Extraskeletal osteosarcoma affecting the left adductor muscle of a 27 years old male. The patient was treated by surgical excision follower by chemotherapy. Extraskeletal osteosarcoma (ESOS) is one of the rare malignant neoplasms that affects the mesenchymal tissues such as the retroperitoneum as well as the soft tissue of the extremities with no significant connection to the related bones. Extraskeletal osteosarcoma usually affects people between 40 years and 80 years and is more common in males with a documented risk factor which is radiation exposure. The common presentation is enlarged or swollen soft tissue which could be painful or not. Extraskeletal osteosarcoma is diagnosed by plain x-ray, CT or MRI as the soft tissue shows variable calcification. The most common affect sites are the lower extremities followed by upper extremities and retroperitoneum. Most of patients are presented with metastasis at time of diagnosis which leads to a generally poor prognosis. The usual treatment is surgical excision of the primary tumor as the tumor is insensitive to chemotherapy or radiotherapy. A model created from this scan can be found here.

    Free

  9. Version 1.0.0

    6 downloads

    This model is the left thigh muscle rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient unfortunately died 9.5 months after diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. Myxoid fibrosarcoma (or myxoid MFH) is the most common subtype of MFH, at about 10%-20% of cases. Clinically, the tumor presents as a deep, slow-growing, painless mass. It is located more commonly in the lower extremities and retroperitoneum. Imaging on MRI demonstrates a mass with low signal intensity on T1-weighting imaging, and high signal intensity on T2-weighted imaging. On histology, a myxoid background is present with a storiform (or cartwheel) pattern seen on low-power imaging, seen in fibrosarcomas. A “myxoid background” is composed of a clear, mucoid substance. Treatment includes radiation, wide surgical resection, and chemotherapy in selected cases. However, the 5-year survival is 50%-60% depending on size, grade, depth and presence of metastasis. The term “malignant fibrous histiocytoma” was coined in the 1960s by Margaret R. Murray when histology a sarcoma demonstrated an appearance like histiocytes, with characteristics of phagocytosis and a pleomorphic pattern. With further research, this entity was identified to have a wider range of appearances with a fibrous characteristic. Today, these sarcomas are known as “pleomorphic sarcomas.” Recently, a change in the understanding of soft tissue tumors has purported that MFH is not a specific type of cancer, but a common morphologic pattern shared by unrelated tumors. One school of thought states that this morphologic pattern is shared by tumors as a common final pathway in cancer progression whereas another school of thought believes that true pleomorphic sarcomas are the result of a transformation from mesenchymal stem cells. Future research into understanding the pathway of these sarcomas and progression will help to target specific therapies and, hopefully, eventual cures. This model was created from the file STS_023.

    Free

  10. Version 1.0.0

    3 downloads

    This model is the left lower extremity muscle rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient is still living with the metastatic disease at 2.5 years since diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. Myxoid fibrosarcoma (or myxoid MFH) is the most common subtype of MFH, at about 10%-20% of cases. Clinically, the tumor presents as a deep, slow-growing, painless mass. It is located more commonly in the lower extremities and retroperitoneum. Imaging on MRI demonstrates a mass with low signal intensity on T1-weighting imaging, and high signal intensity on T2-weighted imaging. On histology, a myxoid background is present with a storiform (or cartwheel) pattern seen on low-power imaging, seen in fibrosarcomas. A “myxoid background” is composed of a clear, mucoid substance. Treatment includes radiation, wide surgical resection, and chemotherapy in selected cases. However, the 5-year survival is 50%-60% depending on size, grade, depth and presence of metastasis. The term “malignant fibrous histiocytoma” was coined in the 1960s by Margaret R. Murray when histology a sarcoma demonstrated an appearance like histiocytes, with characteristics of phagocytosis and a pleomorphic pattern. With further research, this entity was identified to have a wider range of appearances with a fibrous characteristic. Today, these sarcomas are known as “pleomorphic sarcomas.” Recently, a change in the understanding of soft tissue tumors has purported that MFH is not a specific type of cancer, but a common morphologic pattern shared by unrelated tumors. One school of thought states that this morphologic pattern is shared by tumors as a common final pathway in cancer progression whereas another school of thought believes that true pleomorphic sarcomas are the result of a transformation from mesenchymal stem cells. Future research into understanding the pathway of these sarcomas and progression will help to target specific therapies and, hopefully, eventual cures. This model was created from the file STS_022.

    Free

  11. Version 1.0.0

    1 download

    This model is the left thigh muscle rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient is still living with the metastatic disease at 2.5 years since diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. Myxoid fibrosarcoma (or myxoid MFH) is the most common subtype of MFH, at about 10%-20% of cases. Clinically, the tumor presents as a deep, slow-growing, painless mass. It is located more commonly in the lower extremities and retroperitoneum. Imaging on MRI demonstrates a mass with low signal intensity on T1-weighting imaging, and high signal intensity on T2-weighted imaging. On histology, a myxoid background is present with a storiform (or cartwheel) pattern seen on low-power imaging, seen in fibrosarcomas. A “myxoid background” is composed of a clear, mucoid substance. Treatment includes radiation, wide surgical resection, and chemotherapy in selected cases. However, the 5-year survival is 50%-60% depending on size, grade, depth and presence of metastasis. The term “malignant fibrous histiocytoma” was coined in the 1960s by Margaret R. Murray when histology a sarcoma demonstrated an appearance like histiocytes, with characteristics of phagocytosis and a pleomorphic pattern. With further research, this entity was identified to have a wider range of appearances with a fibrous characteristic. Today, these sarcomas are known as “pleomorphic sarcomas.” Recently, a change in the understanding of soft tissue tumors has purported that MFH is not a specific type of cancer, but a common morphologic pattern shared by unrelated tumors. One school of thought states that this morphologic pattern is shared by tumors as a common final pathway in cancer progression whereas another school of thought believes that true pleomorphic sarcomas are the result of a transformation from mesenchymal stem cells. Future research into understanding the pathway of these sarcomas and progression will help to target specific therapies and, hopefully, eventual cures. This model was created from the file STS_022.

    Free

  12. Version 1.0.0

    6 downloads

    This model is the left leg muscle rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient is still living with the metastatic disease at 2.5 years since diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. The lower leg is divided into four muscle compartments: the anterior, lateral, superficial posterior, and deep posterior compartments. The anterior compartment is made from the dorsiflexors, including the tibialis anterior, extensor hallucis longus (EHL), extensor digitorum longus (EDL) and peroneus tertius, which are innervated by the deep peroneal nerve. The lateral compartment includes the peroneus longus and peroneus brevis, which assist in foot eversion and are innervated by the superficial peroneal nerve. The superficial posterior compartment includes the gastrocnemius, soleus, and plantaris, which assist in plantarflexion and are innervated by the tibial nerve. The deep posterior compartment is made up of the popliteus, flexor hallucis longus (FHL), flexor digitorum longus (FDL), and tibialis posterior, which mostly assist in plantarflexion and are innervated similarly by the tibial nerve. The primary motions of the ankle are dorsiflexion, plantarflexion, inversion and eversion. However, with the addition of midfoot motion (adduction, and abduction), the foot may supinate (inversion and adduction) or pronate (eversion and abduction). In order to accomplish these motions, muscles outside of the foot (extrinsic) and muscles within the foot (intrinsic) attach throughout the foot, crossing one or more joints. Laterally, the peroneus brevis and tertius attach on the proximal fifth metatarsal to evert the foot. The peroneus longus courses under the cuboid to attach on the plantar surface of the first metatarsal, acting as the primary plantarflexor of the first ray and, secondarily, the foot. Together, these muscles also assist in stabilizing the ankle for patients with deficient lateral ankle ligaments from chronic sprains. Medially, the posterior tibialis inserts on the plantar aspect of the navicular cuneiforms and metatarsal bases, acting primarily to invert the foot and secondarily to plantarflex the foot. The flexor hallucis longus inserts on the base of the distal phalanx of the great toe to plantarflex the great toe, and the flexor digitorum inserts on the bases of the distal phalanges of the lesser four toes, acting to plantarflex the toes. The gastrocnemius inserts on the calcaneus as the Achilles tendon and plantarflexes the foot. Anteriorly, the tibialis anterior inserts on the dorsal medial cuneiform and plantar aspect of the first metatarsal base as the primary ankle dorsiflexor and secondary inverter. The Extensor hallucis longus and extensor digitorum longus insert on the dorsal aspect of the base of the distal phalanges to dorsiflex the great toe and lesser toes, respectively. This model was created from the file STS_022.

    Free

  13. Version 1.0.0

    29 downloads

    This model is the right lower extremity bone rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient is still living with the metastatic disease at 2.5 years since diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. The leg includes the area between the knee and the ankle and houses the tibia and fibula. The proximal tibia includes the medial plateau (which is concave) and the lateral plateau (which is convex). The Proximal tibia has a 7-10 degree posterior slope. The tibial tuberosity is located on the anterior proximal tibia, which is where the patellar tendon attaches. On the anteromedial surface of the tibia is Gerdy's tubercle, where the sartorius, gracilis, and semitendinosus attach. The distal tibia creates the superior and medial (plafond and medial malleolus) of the ankle joint. The proximal fibula is the attachment for the posterolateral corner structures of the knee joint. The peroneal nerve wraps around the fibular neck. The distal fibula is the lateral malleolus and a common site for ankle fractures. The ankle is a hinge (or ginglymus) joint made of the distal tibia (tibial plafond, medial and posterior malleoli) superiorly and medially, the distal fibula (lateral malleolus) laterally and the talus inferiorly. Together, these structures form the ankle “mortise”, which refers to the bony arch. Normal range of motion is 20 degrees dorsiflexion and 50 degrees plantarflexion. Stability is provided by the anterior talofibular ligament (ATFL), calcaneofibular ligament (CFL), and posterior talofibular ligament (PTFL) laterally, and the superficial and deep deltoid ligaments medially. The ankle is one of my most common sites of musculoskeletal injury, including ankle fractures and ankle sprains, due to the ability of the joint to invert and evert. The most common ligament involved in the ATFL. The foot is commonly divided into three segments: hindfoot, midfoot, and forefoot. These sections are divided by the transverse tarsal joint (between the talus and calcaneus proximally and navicular and cuboid distally), and the tarsometatarsal joint (between the cuboids and cuneiforms proximally and the metatarsals distally). The first tarsometatarsal joint (medially) is termed the “Lisfranc” joint, and is the site of the Lisfranc injury seen primarily in athletic injuries. This model was created from the file STS_022.

    Free

  14. Version 1.0.0

    8 downloads

    This model is the right knee skin rendering of a 65-year-old male with left thigh myxoid fibrosarcoma. At the time of diagnosis, the patient had metastases to his lungs. The patient therefore underwent neoadjuvant radiotherapy, surgery, and adjuvant chemotherapy and was found to have an intermediate grade lesion at the time of diagnosis. The patient is still living with the metastatic disease at 2.5 years since diagnosis. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. Landmarks of the lower extremity consist of bony and muscular landmarks. Prior to incision, the bone landmarks should be palpated and drawn. The patella is the largest sesamoid bone (bone located within a tendon) and is located on the anterior aspect of the knee. Along with the femur, it forms the patellofemoral joint, providing a mechanical advantage to leg extension. The quadriceps tendon inserts proximally and the patellar tendon inserts distally. The patellar tendon attaches to the tibial tubercle on the anterior aspect of the tibia. On the anteromedial surface of the tibia is Gerdy's tubercle, where the sartorius, gracilis, and semitendinosus attach. Laterally, the head of the fibula may be palpated, which is the attachment for the posterolateral corner structures of the knee joint. The peroneal nerve wraps around the fibular neck, and a tinel’s sign may be elicited due to its superficial position at this location. The knee joint can be palpated and must be accurately located in order to provide landmarks for surgeries such as arthroscopy and arthroplasty. Typically, pain with palpation of the joint line is indicative of knee pathologies such as osteoarthritis or a meniscal tear, with point tenderness at the area of the tear. Proper landmarks are essential for the success of procedures about the knee, and therefore the skin should be adequately evaluated prior to any procedure. This model was created from the file STS_022.

    Free

  15. Version 1.0.0

    3 downloads

    This is a 3D printable STL medical file converted from a CT scan DICOM dataset of a 78-year old female that was presented by left thigh swelling( note the difference in contour between both sides), pathological examination revealed it to be malignant fibrous histiocytosis ( pleomorphic sarcoma) of high grade malignancy. The patient underwent MRI and PET scan 7 and 8 days after the pathological examination respectively. Her treatment plan was combined surgical excision and radiotherapy. 66 days later she developed regional recurrence. After 377 days of follow up, The patient was alive with disease. ( STS-020)

    Free

  16. Version 1.0.0

    69 downloads

    The radius and the ulna are long, slightly curved bones that lie parallel from the elbow, where they articulate with the humerus, to the wrist, where they articulate with the carpals. The radius is located laterally, near the thumb, and the ulna medially, near the little finger. The radius and the ulna have a styloid process at the distal end; they are also attachment sites for many muscles.The radius is smaller than the ulna. A total of 27 bones constitute the basic skeleton of the wrist and hand. These are grouped into carpals, metacarpals, and phalanges. The wrist is the most complex joint in the body. It is formed by 8 carpal bones grouped in 2 rows with very restricted motion between them. From radial to ulnar, the proximal row consists of the scaphoid, lunate, triquetrum, and pisiform bones. In the same direction, the distal row consists of the trapezium, trapezoid, capitate, and hamate bones. The hand contains 5 metacarpal bones. Each metacarpal is characterized as having a base, a shaft, a neck, and a head. The first metacarpal bone (thumb) is the shortest and most mobile. It articulates proximally with the trapezium. The other 4 metacarpals articulate with the trapezoid, capitate, and hamate at the base. Each metacarpal head articulates distally with the proximal phalanges of each digit. The hand contains 14 phalanges. Each digit contains 3 phalanges (proximal, middle, and distal), except for the thumb, which only has 2 phalanges. To avoid confusion, each digit is referred to by its name (thumb, index, long, ring, and small) rather than by number. This is 3D printable medical file converted from a CT scan DICOM dataset of a 48-year old female.

    Free

  17. Version 1.0.0

    2 downloads

    This is a 3D printable medical file converted from a CT scan DICOM dataset of a 68-year old male presented by a swelling at the posterior aspect of the left pelvic region(notice the contour bulge at the posterior aspect of the left side). Histopathological examination revealed the swelling to be leiomyosarcoma of intermediate grade of malignancy. His work up included MRI and PET scan 3 and 24 days after the pathological examination respectively. His treatment plan was a combined radiotherapy/surgical resection of the tumor. 96 days later, the patient developed lung metastasis. He died after 607 days.(STS-018)

    Free

  18. Version 1.0.0

    4 downloads

    This is a 3D printable STL medical file converted from a CT scan DICOM dataset of a 78-year old female that was presented by left thigh swelling, Pathological examination revealed it to be malignant fibrous histiocytosis ( pleomorphic sarcoma) of high grade malignancy. The patient underwent MRI and PET scan 7 and 8 days after the pathological examination respectively. The patient underwent combined surgical excision/radiotherapy. 66 days later the patient developed regional recurrence. After 377 days of follow up, The patient was alive with disease. ( STS-020)

    Free

  19. Version 1.0.0

    1 download

    This is a 3D printable medical file of a CT scan DICOM dataset of a 48-year old female that was presented by right hand swelling, pathological examination revealed it to be undifferentiated malignant fibrous histiocystosis of high grade of malignancy. 28 days prior to the pathological examination, the patient underwent MRI. 30 days after the diagnosis had been made, the patient underwent PET scan. Her treatment plan was combined surgical excision/radiotherapy. after 1082 days of follow up, the patient showed no evidence of disease.(STS_019)

    Free

  20. Version 1.0.0

    14 downloads

    The ankle joint is a hinged synovial joint with primarily up-and-down movement (plantarflexion and dorsiflexion). However, when the range of motion of the ankle and subtalar joints (talocalcaneal and talocalcaneonavicular) is taken together, the complex functions as a universal joint. The bony architecture of the ankle consists of three bones: the tibia, the fibula, and the talus. The articular surface of the tibia is referred to as the plafond. The medial malleolus is a bony process extending distally off the medial tibia. The distal-most aspect of the fibula is called the lateral malleolus. Together, the malleoli, along with their supporting ligaments, stabilize the talus underneath the tibia. The bony arch formed by the tibial plafond and the two malleoli is referred to as the ankle "mortise" (or talar mortise). The mortise is a rectangular socket. The ankle is composed of three joints: the talocrural joint (also called talotibial joint, tibiotalar joint, talar mortise, talar joint), the subtalar joint (also called talocalcaneal), and the Inferior tibiofibular joint. The joint surface of all bones in the ankle are covered with articular cartilage. This a 3D printable medical file converted from a CT scan DICOM dataset of a 75-year old female.

    Free

  21. Version 1.0.0

    3 downloads

    This is a case of left thigh posterior mass in a 75-year old female patient. Pathological examination of the specimen revealed spindle shaped cells suggestive of liposarcoma with intermediate grade of malignancy. MRI was done for this patient 33 days before taking the biopsy, and a week after confirming the diagnosis a PET scan was done as a part of the metastatic workup. After performing surgical resection of the tumor followed by radiotherapy, the patient showed no evidence of recurrence for 760 days of follow up. This is a 3D printable medical STL file converted from the real CT scan DICOM dataset of this patient(STS-016).

    Free

  22. Version 1.0.0

    7 downloads

    The knee is the largest joint and one of the most important joints in the body. It plays an essential role in movement related to carrying the body weight in horizontal (running and walking) and vertical (jumping) directions. The knee joint joins the thigh with the leg and consists of two articulations: one between the femur and tibia (tibiofemoral joint), and one between the femur and patella (patellofemoral joint). The knee is a modified hinge joint, which permits flexion and extension as well as slight internal and external rotation. The knee joint is vulnerable to injury and to the development of osteoarthritis. The knee is composed of three functional compartments: the patellofemoral articulation, consisting of the patella, or "kneecap", and the patellar groove on the front of the femur through which it slides; and the medial and lateral tibiofemoral articulations linking the femur, or thigh bone, with the tibia, the main bone of the lower leg. The joint is bathed in synovial fluid which is contained inside the synovial membrane called the joint capsule. This is a 3D-printable medical STL file of normal left knee joint converted from a CT scan dataset of a 75-year old female patient (STS-016).

    Free

  23. Version 1.0.0

    4 downloads

    This is a 3D-printable medical file extracted from the DICOM dataset of a 34-year old female with right thigh swelling. Histo-pathological examination revealed it to be a synovial sarcoma of intermediate grade. 13 days prior to the definitive diagnosis, MRI was done for this patient. 23 days later PET scan was also done as a part of her metastatic workup. After treating the patient with radiotherapy and surgical resection, The patient showed no evidence of disease after nearly 2 years of follow up. (STS-015)

    Free

  24. Version 1.0.0

    8 downloads

    This is the normal left thigh muscle model of a 56 year old male with contralateral anterior thigh pleomorphic leiomyosarcoma. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. The thigh is divided into three compartments: the anterior, posterior, and adductor. The anterior compartment contains the “quadriceps muscles”, made up of the vastus lateralis, vastus medialis vastus intermedius, and rectus femoris, and the sartorius. These muscles are innervated by the femoral nerve (L3-L4), and act to extend the leg. The Sartorius muscle originates at the ASIS and crosses anterior to the quadriceps muscle to insert on the medial tibia in the pes anserinus. The posterior compartment contains the “hamstrings”, made up of the semitendinosus, semimembranosus, and short and long heads of the biceps femoris. These muscles act to flex the leg. All of these muscles are innervated by the sciatic nerve (tibial division) except for the short head of the biceps femoris, which is innervated by the sciatic nerve (peroneal division). The adductor compartment contains the adductor longus, adductor brevis, adductor magnus, and gracilis, which act to adduct the thigh. These muscles are innervated by the obturator, and the adductor magnus has dual innervation with the sciatic nerve. In addition, the obturator externus (a thigh external rotator) and pectineus muscle (thigh flexor and adductor) are located within this compartment. This model was created from the file STS_014.

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  25. Version 1.0.0

    17 downloads

    This image is the left thigh bone rendering of an 82 year old male with a dedifferentiated liposarcoma in the anterior compartment of the left thigh. This is an STL file created from DICOM images of his CT scan which may be used for 3D printing. Liposarcomas are the second most common soft tissue sarcoma in adults, occurring more commonly in males between the ages of 50 and 80 years old. They present as a slow growing, painless mass typically located in the extremities, with the thigh being the most common location. Multiple variants of liposarcomas exist, but the dedifferentiated type is a high-grade sarcoma. Dedifferentiated liposarcomas are typically located adjacent to a well-differentiated lipomatous lesion. The incidence of pulmonary metastasis increases with grade. Therefore, work up of the lesion consists of MRI, biopsy through the area of future resection, CT of the chest, abdomen, and pelvis to rule out metastases. Treatment consists of radiation and wide surgical resection but chemotherapy agents are being developed to target chromosomal abnormalities associated with certain well-differentiated and dedifferentiated liposarcomas. This patient received radiation and resection of the tumor and has not had a metastasis or recurrence in 4.5 years. This image came from the file STS_013.

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