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Juxta-articular chondroma Kaposi's Sarcoma Large cell lymphoma, Leimyosarcoma, Leiomyosarcoma, Letterer-Siwe disease, Leukemia, Low-grade intramedullary osteogenic sarcoma, Lumbosacral lipoma, Lymphangioma, Lymphangiomatosis, Lymphoma, Lymphoma pseudotumor (Actual: radiation osteitis), Lymphoma pseudotumor (Actual: stress fracture), Lymphoma with secondary osteogenic sarcoma Maffucci's Syndrome, Maligant fibrous histiocytoma pseudotumor (Actual: Hematoma), Malignant fibrous histiocytoma (MFH).
Liposarcoma, myxoid - Thigh - Gross specimen
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Liposarcoma, myxoid - Thigh - Gross specimen
  • Case ID: 289
  • Diagnosis: Liposarcoma, myxoid
  • Category: Soft Tissue Tumors
  • Category Type: Fatty
  • Category Sub Type: Malignant
  • Location: Thigh
  • Age: 32
  • Sex: M
  • Treatment: Resection
  • Image ID: 2184
  • Image Type: Gross specimen
  • Images relating to this case: 2181 , 2182 , 2183 , 2184, 2185 .

Cut section through the resected tumor shows a mixture of what appears to be benign lipoma fatty tissue with its characteristic yellow appearance but at the periphery there is a tannish-pink discolored lobulated tumor tissue that histologically was diagnostic of a myxoid liposarcoma. However, the yellow tissue showed the histologic appearance of a benign lipoma. This case demonstrates how a small needle biopsy specimen could lead to a sampling error problem.


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