Cecal Cancer Metastatic to Breast

Presented is a 62-year-old woman with poorly differentiated adenocarcinoma of the cecum with an ulcerative right breast metastasis. Although extramammary metastases to the breast are rare and difficult to diagnose, our multidisciplinary workup utilizing clinical history, radiographic, and pathologic findings allowed for accurate identification of tumor origin. Although rare, extramammary metastases must be included as part of the differential in patients that present with a breast mass. Identification may be difficult and require collaboration with experts in other fields.