Bilateral Gigantomastia, Multiple Synchronous Nodular Pseudoangiomatous Stromal Hyperplasia Involving Breast and Bilateral Axillary Accessory Breast Tissue, and Perianal Mammary-Type Hamartoma of Anogenital Mammary-Like Glands: A Case Report.

Am J Dermatopathol

*Department of Pathology, BC Cancer Agency, Vancouver, British Columbia, Canada; †Department of Pathology, Clinical Research and Practical Center for Specialized Oncological Care, Saint-Petersburg, Russia; ‡Medical Faculty, Saint-Petersburg State University, Saint-Petersburg, Russia; §Sikl's Department of Pathology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic; ¶Bioptical Laboratory, Pilsen, Czech Republic; ‖Department of Radiology, Medical Faculty in Pilsen, Charles University in Prague, Pilsen, Czech Republic; and **Department of Surgery, Charles University Medical Faculty Hospital, Pilsen, Czech Republic.

Published: May 2016

Mammary-type fibroepithelial lesions involving ectopic breast and anogenital region are rare and usually coexist with normal orthotopic breast. We present what we believe to be a unique case of synchronous bilateral gestational gigantomastia resembling fibrous mastopathy, synchronous rapidly growing pregnancy-associated nodular pseudoangiomatous stromal hyperplasia involving right breast and bilateral axillary ectopic breast tissue, and metachronous perianal mammary-type hamartoma involving anogenital mammary-like glands occurring in a 34-year-old patient with facioscapulohumeral muscular dystrophy. Also, we review the literature concerning these lesions.

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http://dx.doi.org/10.1097/DAD.0000000000000498DOI Listing

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