Extraovarian stage IV peritoneal serous papillary carcinoma presenting as an asymptomatic skin lesion--a case report and literature review.

An 81-year-old G2 P2 white female in good health with the exception of well-controlled hypertension presented to her family physician with a newly discovered lesion in the skin of the abdominal left lower quadrant. Initially, this nodule was viewed as innocuous and was followed with the expectation that it would soon resolve. Three months later, the lesion was biopsied, revealing a pattern consistent with papillary serous carcinoma from a presumed ovarian primary. CT scan revealed a pelvic mass. Subsequent laparotomy revealed a benign tubal cystadenofibroma, but otherwise normal pelvic viscera. Additional findings, however, included multiple small parietal peritoneal nodules histopathologically diagnosed as extraovarian peritoneal serous papillary carcinoma similar to the skin lesion. All gross disease was extirpated. The patient received chemotherapy as for advanced ovarian cancer.