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Surg Today. 2007;37(11):967-70. Epub 2007 Oct 25.

Fast-growing pseudoangiomatous stromal hyperplasia of the breast: report of a case.

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Department of Radiology, College of Medicine, Korea University, Guro Hospital, 97 Guro-dong, Guro-ku, Seoul 152-703, South Korea.


Pseudoangiomatous stromal hyperplasia (PASH) is a rare type of benign mesenchymal proliferative disease of the breast. Histologically, it is composed of a proliferation of spindle cells with inter-anastomosing vascular-like arrangement in the interlobular or interductal stroma. Clinically, pseudoangiomatous stromal hyperplasia is usually found in premenopausal women as a discrete, painless mass, which is firm and movable. We report a case of pseudoangiomatous stromal hyperplasia of the breast, which mimicked a malignant mass in that it grew rapidly and ultrasonography showed a lobulating contoured heterogeneous echotexture.

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