ABSTRACT

Pseudoangiomatous stromal hyperplasia (PASH) of the breast is a rare benign tumoral lesion of mammary stroma containing complex anastomosing spaces. This uncommon proliferative lesion is in differential diagnosis with angiosarcoma in histopathological examinations. A 38 year-old woman was admitted to our clinic with a complaint to of mastalgia and a mass in her right breast since six years. Ultrasonographic examinations revealed 4 cm mass with a diagnosis of fibroadenoma. Total excision of the mass was performed without any complications. Histopathologic examimation revealed pseudoangiomatous stromal hyperplasia.