PMC7700956_01
An enlarged painful swelling with ill-defined margins measuring 25 cm extending from the right iliac fossa to scrotums.
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The diameter of the scrotal tumor was 50 cm with edematous skin, and the penis had sunk into the mass (Fig. 1).
CT scan images revealing a heterogeneously enhancing fatty mass with solid nodules and necrotic areas, with craniocaudal extension of over 40 cm from the retroperitoneum to the inguinoscrotal region, compressing the abdominal aorta and the intestines to the left side of the abdomen.
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No local infiltration or distant metastasis was detected (Fig. 2).
Undifferentiated areas with spindle cells arranged in storiform bundles (A: HEx40, B: HEx200).
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Surgical limits were clear (Fig. 3, Fig. 4).