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Singapore Med J. 2008 Mar;49(3):e82-5.

The contrasting presentation and management of pseudoangiomatous stromal hyperplasia of the breast.

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Department of General Surgery, Changi General Hospital, 2 Simei Street 3, Singapore 529889.


Pseudoangiomatous stromal hyperplasia of the breast is a benign entity characterised by dense, collagenous proliferation of mammary stroma, forming interanastomosing capillary-like spaces lined by slender spindle cells. These spaces are not true vascular spaces, hence the term "pseudoangiomatous". We report two 14-year-old girls, who presented to us with pseudoangiomatous stromal hyperplasia of the breast. We believe that our patients represent two of the youngest ethnic Chinese females to be reported with this rare condition. The development of such a rapidly enlarging lesion often leads to anxiety and concern about malignancy, and emphasises the importance in appropriate diagnosis and management. We discuss the aetiology, clinical presentation, radiological and pathological features, as well as management of this unusual condition.

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