Granular Cell Tumor Originating from the Pectoral Muscle: A Rare Extramammary Finding on Mammography

Abstract

A granular cell tumor (GCT) is a rare soft tissue tumor that usually arises from the striated muscle of the tongue. Few literatures have reported pectoral muscle involvement of the GCT. Herein, we report a rare case of a GCT originating from the pectoral muscle below the breast with multimodal imaging appearance.

Keywords

• granular cell tumor
• pectoral muscle
• multimodal imaging