PMC4782407_01
(a) CT showing a solid heterogeneous mass in the left anterior pararenal space compressing left kidney (b) Cytology smear showing cells in microfollicular pattern (Papanicolaou, x400) (c) Cells in sheets and microfollicular pattern (H and E, x400) (d) Tumor cells showing strong positivity for inhibin (Inhibin, x400)
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F1
Computerized tomography (CT) of the abdomen revealed a solid heterogeneous mass lesion measuring 11.2 cm x 8 cm x 12 cm, consistent with retroperitoneal hematoma [Figure 1a]. Ultrasonography (USG)-guided aspiration of the mass was performed and the smears were hypercellular with small, overlapping cell clusters and cells in a microfollicular pattern [Figure 1b]. Histologically the neoplasm was composed of small round to oval neoplastic cells with predominantly microfollicular [Figure 1c], diffuse, and watered-silk patterns. The tumor was positive for inhibin [Figure 1d] and negative for EMA.