Abdominal Wall Metastasis from an Invasive Lobular Carcinoma of the Breast: A Case Report

breast cancers (1). Moreover, it differs from invasive ductal carcinoma, the most common histologic subtype of breast cancer, not only with respect to histologic and mammographic characteristics, but also in the pattern of metastatic spread (2). While the spread to the lymph nodes, lung and liver is common in both ductal and lobular carcinomas, invasive lobular carcinoma has been found to metastasize frequently to the gastrointestinal tract, peritoneum and retroperitoneum, and the gynecological organs (3-5). To the best of our knowledge, no previous cases of distant subcutaneous metastatic nodules from invasive lobular carcinoma, except for chest wall recurrence, has been reported. We report a case of tumor infiltration into the anterior abdominal wall presenting as a palpable mass 3 years after the treatment of an invasive lobular carcinoma of the breast.