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Sclerotic fibroma (storiform collagenoma)‐like stroma in a fibroadenoma of axillary accessory breast tissue
Author(s) -
ValBernal José Fernando,
GonzálezVela María Carmen,
De Grado Mauricio,
Garijo María Francisca
Publication year - 2012
Publication title -
journal of cutaneous pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 75
eISSN - 1600-0560
pISSN - 0303-6987
DOI - 10.1111/j.1600-0560.2012.01940.x
Subject(s) - fibroadenoma , medicine , pathology , fibroma , breast fibroadenoma , stroma , axilla , cowden syndrome , lesion , biology , breast cancer , pten , apoptosis , biochemistry , immunohistochemistry , cancer , pi3k/akt/mtor pathway
Accessory breast tissue is a subcutaneous remnant persisting after normal embryological development of the breast. It occurs most frequently in the axilla. Fibroadenomas in axillary breast tissue are rare. We report the case of a 29‐year‐old female patient who presented a fibroadenoma arising in the accessory breast tissue of the right axillary fossa. The neoplasm showed foci of sclerotic fibroma‐like stroma. The patient had no signs of Cowden's syndrome. To the best of our knowledge, a lesion of this kind has not been previously reported. This stromal change suggests an uncommon involutional phase of the fibroadenoma with production of sclerotic and hypocellular collagen. The lesion should be differentiated from extraneural perineuroma, from the changes in fibroadenomas in Cowden's syndrome, from sclerosing lobular hyperplasia (fibroadenomatoid mastopathy) and from pseudoangiomatous stromal hyperplasia.