Review Question - QID 6198

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Liposarcoma QID: 6198 (SAE08AN.38)

QID 6198 (Type "6198" in App Search)

Figures 24a through 24c show the coronal T1-weighted, T2-weighted fat-saturated, and T1-weighted fat-saturated gadolinium MRI scans of the proximal thigh of a 52-year-old woman who reports a mass in the medial thigh and groin area. She notes that the fullness has grown in size over the course of many months. Based on these findings, what is the most likely diagnosis?

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Malignant fibrous histiocytoma

8/573

Liposarcoma

89%

509/573

Synovial cell sarcoma

11/573

Leiomyosarcoma

36/573

Clear cell sarcoma

4/573

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The images show a complex, lobular lesion of the thigh that has signal characteristics that follow fat. The size of the lesion, the areas of stranding within the mass, along with mild uptake on the gadolinium sequences and the mild edema within the lesion on the T2-weighted image make liposarcoma the most likely diagnosis and simple intramuscular lipoma far less likely. All other diagnoses listed would not follow fat characteristics shown on the MRI sequences.

Radiographic imaging of musculoskeletal neoplasia.

T G Sanders,

T W Parsons 3rd

General
- Pigmented Villonodular Synovitis

T G Sanders, 2001

28 responses

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