Clinical Case Reports (Jan 2024)
Large tumoral pseudoangiomatous stromal hyperplasia with ER/PR stromal negativity in a 20‐year‐old female: A rare case report
Abstract
Key Clinical Message Pseudoangiomatous stromal hyperplasia (PASH) is a rare lesion of the breast stromal tissue with unknown mechanism. Hormonal stimulation of mammary myofibroblasts is the most important theory due to stromal positivity of progesterone receptor (PR) or/and estrogen receptor (ER). We report a case of PASH with stromal PR/ER negativity.
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