case_images: PMC7752295_01
case_images: Demonstrated mass at left thigh: (a) posterior view, (b) front view.
case_images: CRIS2020-8846932.001.jpg
case_images: PMC7752295_01_CRIS2020-8846932.001.jpg
case_images: fig1
case_images: On physical examination, there was a firm nonpulsatile mass over left medial thigh measuring ~10 x 6 cm in diameter (Figure 1).
case_images: Computed tomography (CT) scan demonstrated 11 x 8 x 7 cm, in vertical x transverse x AP diameter of well-defined, fatty lesion with thick streak fibrous tissue at the right posteromedial of thigh: (a) axial view, (b) coronal view, and (c) sagittal view.
case_images: CRIS2020-8846932.002.jpg
case_images: PMC7752295_01_CRIS2020-8846932.002.jpg
case_images: fig2
case_images: The computed tomography (CT) scan demonstrated an intramuscular 11 x 8 x 7 cm, in vertical x transverse x AP diameter of well-defined, fatty lesion with thin streak fibrous tissue at the left posteromedial of the thigh (Figure 2).
case_images: Complete surgical removal of tumor.
case_images: CRIS2020-8846932.003.jpg
case_images: PMC7752295_01_CRIS2020-8846932.003.jpg
case_images: fig3
case_images: Complete en bloc tumor resection with total removal of semimembranosus and semitendinosus muscles was successful (Figure 3).
case_images: The gross specimen showed cut surfaces of the mass revealing pale yellow, greasy, lobulated mass with ill-defined, infiltrative edge to the surrounding muscle on one side.
case_images: CRIS2020-8846932.004.jpg
case_images: PMC7752295_01_CRIS2020-8846932.004.jpg
case_images: fig4
case_images: Serial sections of the mass revealed focal gradual replacement of the muscle tissue by fat into the intermuscular connective tissue spaces (Figure 4).
case_images: Microscopic examination. (a) Histological revealed characteristic multivacuolated lipoblasts. (b, c) An infiltrative, intramuscular component is composed of adipocytic lesion encasing skeletal muscle fibers. (d-f) Multivacuolated lipoblast and hyperchromatic stromal cells found in between the muscle fibers.
case_images: CRIS2020-8846932.005.jpg
case_images: PMC7752295_01_CRIS2020-8846932.005.jpg
case_images: fig5
case_images: No necrosis and no high-grade sarcomatous component were seen (Figure 5).