pseudoangiomatous stromal hyperplasia

Pseudoangiomatous stromal hyperplasia (PASH)

What is pseudoangiomatous stromal hyperplasia (PASH)? Pseudoangiomatous stromal hyperplasia (PASH) is a non-cancerous growth in the breast. It is made up of specialized cells called myofibroblasts. The growth is called “pseudoangiomatous” (which means “like blood vessels”) because the myofibroblasts form small slit-like spaces that look similar to blood vessels when examined under the microscope. What …
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