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Diseases

Genetic and Rare Diseases Information Center (GARD)

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Pseudoangiomatous stromal hyperplasia

*

* Not a rare disease

Other Names for this Disease

  • Mammary pseudoangiomatous stromal hyperplasia
  • PASH
  • Pseudoangiomatous stromal hyperplasia of the breast
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Overview

Pseudoangiomatous stromal hyperplasia (PASH) is a type of non-cancerous breast lesion. It typically affects women in the reproductive age group.[1] The size of the lesion varies, but small microscopic PASH is much more common than larger masses. Microscopic PASH is often an incidental finding in breast biopsies done for other non-cancerous or cancerous lesions. Tumorous PASH presents as a firm, painless breast mass or a dense region on a mammogram.[2][1] 
Last updated: 4/8/2011

References

  1. Virk RK, Khan A. Pseudoangiomatous stromal hyperplasia: an overview. Arch Pathol Lab Med. 2010 Jul;
  2. Cyrlak D, Carpenter PM. Breast imaging case of the day: Pseudoangiomatous stromal hyperplasia. Radiographics. 1999; 19:1086-1088. http://radiographics.rsnajnls.org/cgi/content/full/19/4/1086. Accessed 3/4/2008.
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Basic Information

  • The American Cancer Society provides information on benign (non-cancerous) breast conditions.  Click on the American Cancer Society link to view this information.

In Depth Information

  • PubMed is a searchable database of medical literature and lists journal articles that discuss Pseudoangiomatous stromal hyperplasia. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • Mammary pseudoangiomatous stromal hyperplasia
  • PASH
  • Pseudoangiomatous stromal hyperplasia of the breast
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.