Giant epidermoid cyst in the breast: A common benign lesion at a rare site-A case report

Epidermoid cyst is a common clinical entity and it can occur anywhere in the body. But its occurrence and huge size in the breast is very rare and more liable to develop complications, including malignant transformation.

We present here an unusual case of a giant epidermoid cyst in the breast, which is about 7cm in greatest dimension. After proper preoperative diagnosis by clinical, imaging and histopathological findings, it was managed by total excision.

Imaging and fine needle aspiration cytology is essential for accurate preoperative diagnosis. However, it is often very difficult to differentiate it from other benign and malignant conditions of breast. Infection and malignant transformation are its potential complications. Total excision along with its capsule is the treatment of an epidermoid cyst.

Epidermoid cyst is an important differential diagnosis while managing benign breast disease.