Mucinous adenocarcinoma of the buttock associated with hidradenitis: A case report

Figure 1 Clinical appearance of buttocks.

Figure 2 Radiologic findings. A: Computed tomography findings before the first operation show a huge abscess cavity in bilateral buttocks; B: Positron emission tomography findings show ¹⁸F-fluorodeoxyglucose uptake along the abscess cavity.

Figure 3 Pathologic results of the buttock mass. A: There are variable-sized proliferated atypical glands and mucin pools (H&E, × 4); B: The atypical glands are positive for cytokeratin 20; C: The atypical glands are positive for CDX2.

Figure 4 Photographs after the second operation. A: Wide excision; B: V-Y flap operation.

Figure 5 Follow-up magnetic resonance imaging after 24 mo. There is no recurrence. A: T1 weighted image; B: T2 weighted image.