Diffuse Left Breast Enlargement and Microcalcifications Secondary to Large Nodular PASH - Abstract
Pseudoangiomatous stromal hyperplasia (PASH) is a benign breast lesion of proliferating fibroblastic or myofibroblastic stromal elements in slit like clefts resembling vascular channels. It is usually seen as incidental microscopic changes at core needle biopsy of other mammographic findings. Clinical presentation can vary broadly, sometimes presenting as a focal mass on mammography, and rarely as a palpable breast lump. Knowledge of PASH facilitates interpretation of images and can be crucial to differentiating it from other pathological processes, particularly in cases where low-grade angiosarcoma may be of concern.