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October 2006

Peristomal Metastatic Adenocarcinoma of the Rectum

Arch Dermatol. 2006;142(10):1361-1375. doi:10.1001/archderm.142.10.1372

Cutaneous metastases from colorectal adenocarcinoma most commonly present as dermal papules or nodules on the abdomen or pelvic region. We describe a 44-year-old woman who developed peristomal ulcerations at her colostomy site 6 months after resection of a rectal adenocarcinoma. The ulcerations proved to be metastatic tumor histologically.

A 44-year-old woman was referred for superficial ulcerations occurring adjacent to a colostomy stoma. Six months previously, she had undergone an abdominoperineal resection for a rectal adenocarcinoma (stage I, T2 N0 M0). The resected sigmoid colon, rectum, and anus revealed a 3-cm tumor superficially invading the muscularis propria with margins of resection and 8 perirectal lymph nodes negative for tumor.