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Pseudoangiomatous stromal hyperplasia (PASH)

Case contributed by Mariam Shehata
Diagnosis almost certain

Presentation

Premenopausal female patient presents with a palpable mass in the left breast.

Patient Data

Gender: Female

US of the palpable mass

ultrasound

Solid oval hypoechoic mass with circumscribed margins in parallel orientation

Case Discussion

The tumor form of PASH commonly presents as a single, circumscribed, palpable mass in a premenopausal female. There are no specific imaging findings to distinguish PASH from other solid breast masses like fibroadenoma. Definitive diagnosis requires pathology. This case was confirmed by core biopsy to be a case of PASH.

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