Hiperplasia pseudoangiomatosa nodular gigante de la mama

Abstract

Pseudoangiomatous stromal hyperplasia (PASH) of the breast is a rare benign proliferative mesenchymal lesion characterized by the presence of open slit like spaces embedded in a hyalinized fibrous stroma. The development of PASH is probably subject to hormonal influence so it typically affects women in the reproductive age group. Pseudoangiomatous stromal hyperplasia is frequently an incidental histologic finding in breast surgeries or biopsies performed for other injuries. In rare cases, it presents as a localized breast mass. The most important differential diagnosis is low-grade angiosarcoma. Tumorous PASH is treated by local surgical excision with clear margins. The prognosis is excellent, with minimal risk of recurrence after adequate surgery. The presented case was a 37-years-old woman who was admitted with a rapidly growing breast tumor.