Multinodular Cutaneous Spread in Neuroendocrine Tumor of the BreastAn Unusual Presentation

Carcinoid tumors are the most common type of neuroendocrine tumors with an incidence of 1.5 per 100 000 of the population. Skin manifestations of carcinoid tumors include those associated with the carcinoid syndrome and sequelae from metastatic disease. Carcinoid tumors in the breast, which were first described in 1977, are rare and may present either as primary or metastatic lesions. The existence of primary breast carcinoid tumors is controversial, however, and, if they do exist, would account for <1% of primary breast cancers.