" /> Pseudoangiomatous Stromal Hyperplasia - CISMeF





Preferred Label : Pseudoangiomatous Stromal Hyperplasia;

NCIt synonyms : PASH; Breast Pseudoangiomatous Stromal Hyperplasia;

NCIt definition : A benign proliferation of the stromal cells in the breast. It is classified as simple, when associated with the presence of slit-like spaces without erythrocytes and as fascicular/proliferative, when spindle cell proliferation without atypia is present. It is often seen in breast tissue specimens as small foci associated with benign epithelial lesions. Pseudoangiomatous stromal hyperplasia presenting as a well-circumscribed palpable mass is rare.;

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09/05/2025


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