Fibroadenoma in a young male breast: A case report and review of the literature

Morikawa, Hideki; Nobuoka, Megumi; Amitani, Masatsugu; Shimizu, Tadafumi; Ohno, Koichi; Ono, Mayu; Oba, Takaaki; Ito, Tokiko; Kanai, Toshiharu; Maeno, Kazuma; Uehara, Takeshi; Ito, Kenichi

doi:10.1002/ccr3.5114

Cited by 8 publications

(13 citation statements)

References 16 publications

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“…Fibroadenoma of the male breast is a rarely diagnosed lesion, and only 17 cases of this disorder have been reported in the English literature so far as shown in Table 1 [ [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] ]. Gynecomastia is the most common benign disorder in the male breast [ [22] , [23] , [24] ].…”

Section: Discussionmentioning

confidence: 99%

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Management of patient presenting with breast fibroadenoma and medullary thyroid cancer in a young male: A case report and review of the literature

Bacha

Nibret

Tantu

et al. 2022

Annals of Medicine &Amp; Surgery

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Section: Discussionmentioning

confidence: 99%

“…Gynecomastia is the most common benign disorder in the male breast [ [22] , [23] , [24] ]. This disorder has high concurrence with male fibroadenomas [ [6] , [7] , [8] ].…”

Section: Discussionmentioning

confidence: 99%

Management of patient presenting with breast fibroadenoma and medullary thyroid cancer in a young male: A case report and review of the literature

Bacha

Nibret

Tantu

et al. 2022

Annals of Medicine &Amp; Surgery

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“…The exact cause of enlargement in juvenile fibroadenomas is unknown. In humans, male fibroadenomas are rare tumors that are thought to be associated with hormone therapy [24][25][26] .…”

mentioning

confidence: 99%

“…The exact cause of enlargement in juvenile fibroadenomas is unknown. In humans, male fibroadenomas are rare tumors that are thought to be associated with hormone therapy 24 , 25 , 26 . However, five human cases of fibroadenomas have been reported in adolescents and under-30s without an association with hormone treatment, and the tumor growth in these cases was relatively slow 24 , 25 , 26 .…”

mentioning

confidence: 99%

“…In humans, male fibroadenomas are rare tumors that are thought to be associated with hormone therapy 24 , 25 , 26 . However, five human cases of fibroadenomas have been reported in adolescents and under-30s without an association with hormone treatment, and the tumor growth in these cases was relatively slow 24 , 25 , 26 . The animal in our case had no evidence of hormonal imbalance in the reproductive or endocrine systems.…”

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A mammary fibroadenoma with terminal end buds-like structures in a 7-week-old male SD rat

et al. 2023

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We report a case of mammary fibroadenoma in a 7-week-old male SD rat. This case showed rapid growth within one week from the time when the nodule was detected. Histologically, the nodule was a wellcircumscribed subcutaneous mass. The tumor consisted of an epithelial component with island-like proliferation (cribriform to tubular patterns) and an abundant mesenchymal component. Alpha-SMApositive cells were arranged at the periphery of the epithelial component and showed cribriform and tubular patterns. Discontinuous basement membranes and high cell proliferative activities were observed in the cribriform area. These features resembled those of normal terminal end buds (TEBs). Since the mesenchymal component had abundant fine fibers and a mucinous matrix, its stroma was regarded as neoplastic growth of fibroblasts; thus, this tumor was diagnosed as a fibroadenoma. This case is an extremely rare fibroadenoma in that it occurred in a young male SD rat and was composed of an epithelial component showing multifocal proliferation of TEB-like structures and a mucinous mesenchymal component consisting of fibroblasts with fine collagen fibers.

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Intra-abdominal ectopic breast tissue in male patient presenting as a fibroadenoma: a case report

Baset¹,

Arafat²,

Mousavi

et al. 2023

Annals of Medicine &Amp; Surgery

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Introduction: Fibroadenoma (FA) in ectopic male breast tissue is extremely rare. The ectopic breast tissue (EBT) is mostly appearing along the milk line; however, uncommon locations are also seen, such as the present case. Case Presentation: The authors report a 19-year-old male presenting with intestinal obstruction. The patient underwent laparoscopic surgery, and an excisional biopsy of the lesion was done. The histopathologic result confirms FA arising from EBT. This case is reported for its rarity. It indicates that FA should always be considered when there is an intra-abdominal suspicious mass. Discussion: EBT presenting as FA is also reported in the face, posterior neck, chest, middle back, buttocks, vulvar, and thighs. In this case, the authors present a EBT presented as a FA in the intra-abdomen of a young male patient, causing intestinal obstruction. FA in the male breast is rare; however, benign breast parenchyma showing FA in the intra-abdomen of a male patient is extremely rare. Conclusion: When a tumor is palpated in the milk line, the existence of FA should be taken into consideration. FA of the male EBT in the intra-abdomen is extremely rare. However, a close follow-up of the patient is strongly recommended, as the carcinoma arising from FA has a very poor prognosis.

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Fibroadenoma in a young male breast: A case report and review of the literature

Cited by 8 publications

References 16 publications

Management of patient presenting with breast fibroadenoma and medullary thyroid cancer in a young male: A case report and review of the literature

Management of patient presenting with breast fibroadenoma and medullary thyroid cancer in a young male: A case report and review of the literature

A mammary fibroadenoma with terminal end buds-like structures in a 7-week-old male SD rat

Intra-abdominal ectopic breast tissue in male patient presenting as a fibroadenoma: a case report

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