PMC4996621_01
CT scan imaging revealed a mass in the left renal hilum that enhanced after injection of the intravenous contrast (A). The lesion did not invade the pyelocalyceal system (B).
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Abdominal CT scan showed a single well-defined homogeneously enhanced mass close to the left renal pedicle with no calcification or necrosis (Fig. 1A, B).
Pathologic examination of the specimen.
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The pathologic examination was compatible with Castleman disease (Fig. 2).