Metastases of lobular breast carcinoma in the terminal ileum and ileocaecal valve.

Gastrointestinal (GI) metastases from primary breast carcinoma are rare but more common in invasive lobular carcinoma than invasive ductal carcinoma. The symptoms may be non-specific and the presentation can occur many years after the initial primary breast carcinoma. Radiological and endoscopic findings can be difficult to distinguish from inflammatory bowel disease and primary carcinoma of the GI tract. Histological and immunohistopathology assessment will usually confirm the diagnosis of metastatic breast carcinoma. We report the first case of lobular breast carcinoma metastasizing to the terminal ileum and ileocaecal valve 19 years following treatment for breast cancer in an 82-year-old woman. Staging investigations revealed synchronous metastases in bones and the pleura. A high index of suspicion and awareness of the potential long interval in the presentation of metastatic breast cancer help in making an accurate diagnosis and rapid clinical management.