Fibroadenoma in axillary supernumerary breast: case report

Abstract

CONTEXT: Supernumerary breast tissue may be affected by the same diseases and alterations that compromise topical breast tissue. Nevertheless, reports of fibroadenoma in supernumerary breast tissue in the axillae are rare. OBJECTIVE: To describe a case of fibroadenoma in an axillary supernumerary breast. DESIGN: Case report. CASE REPORT: A 39-year-old woman was referred to the gynecology and obstetrics outpatient clinic at Hospital Estadual Sumaré, complaining of bilateral axillary masses. The patient reported cosmetic problems and local pain and discomfort. On physical examination, alterations compatible with bilateral axillary accessory breasts, without palpable nodules, were observed. Supplementary examinations (mammography and ultrasonography) revealed a 1.1 cm mass in the right axillary breast. The patient underwent resection of the supernumerary breasts and histopathological examination revealed fibroadenoma of the right axillary breast tissue.

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

“…72 Approximately 30 cases of axillary fibroadenoma have been reported in the English-language literature. 5,8,19,[64][65][66][73][74][75][76][77][78][79][80][81] Other lesions occurring in ectopic breast include fibrocystic disease, phyllodes tumor, intraductal papillomas, nipple adenoma, breast hamartoma, and mammary carcinoma. 5,71,76,77,82 The combination of gigantomastia in pregnancy with axillary breast tissue and tumors originating from AGMLG occurs very rarely and can be confused clinically with inflammatory breast cancer.…”

Fibroadenoma in axilla: another manifestation of ectopic breast

“…In cases of bilateral axillary ectopic breast tissue, work up should be similar to that of unilateral mass 16. The diagnostic (mammography, ultrasonography, cytology and biopsy) and therapeutic protocol for a supernumerary breast mass is similar to that of a normal breast mass 6. The diagnosis is usually delayed because of lack of suspicion of this rare condition.…”

Fibroadenoma of the Axilla in A Patient With Macroprolactinoma

“…We conducted a systematic literature review regarding case reports of fi broadenoma in axilla by searching pubmed, using the following terms: "axillary breast" and "fi broadenoma" / "ectopic breast" and "fi broadenoma" / "axilla" [and] "fi broadenoma" / "supernumerary breast" and "fi broadenoma". We included all case reports of fi broadenoma in axilla with available abstract, totalizing 10 reports (Table 1) [1,4,8,9,[11][12][13][14][15][16]. The patients' average age was 33.2 years (minimum of 21 and maximum of 58 years), and the mean lesion size was 3.5 cm.…”