Granular Cell Tumor of the Breast

Abstract

Granular cell tumor (GCT) of the breast is an uncommon, usually benign tumor originating from Schwann cells of peripheral nerves. Clinical and radiological findings of GCTs are similar to those of malignant tumors, and GCTs of the breast are often confused with breast cancer clinically or radiologically. We experienced 1 case of GCT diagnosed by core needle biopsy and immunohistochemical staining in the right breast of 54-year-old woman with Graves"s disease and report the case with a review of the literature.