Axillary Accessory Breast Tissue Mimicking Lipoma


accessory breast

How to Cite

Echchaoui, A., & Daoud, G. (2016). Axillary Accessory Breast Tissue Mimicking Lipoma. Galician Medical Journal, 23(3).


Accessory breast tissue is rare congenital condition which occurs in 0.4-6% of women, it is usually bilateral, asymptomatic and commonly present in axilla. Diagnosis is difficult when it is unilateral with absence of areola and nipple, it can be made by ultrasonography. Surgical excision is warranted in case of functional symptoms or aesthetic discomfort. Herein, we report a case of right-sided accessory breast in a 36-year-old woman manifested in axillary swelling, clinically argued for a possible lipoma. Diagnosis was confirmed by ultrasonography and histological examination followed by surgical excision which relieved functional symptoms with significant cosmetic improvement.


Vidyasagar R, Sudarshan P, Ravindranath Singh N, Shivaram S. A rare presentation of an ectopic breast tissue in axilla. Our Dermatology Online. 2015;6(4):450-452.

Hong JH, Oh M-J, Hur J-Y, Lee JK. Accessory breast tissue presenting as a vulvar mass in an adolescent girl. Arch Gynecol Obstet. 2009; 280:317–320. PMid:19125265

Ersilia MD, Elizabeth KA. The ABCs of Accessory Breast Tissue: Basic Information Every Radiologist Should Know. American Journal of Roentgenology. 2014; 202(5): 1157-1162. PMid:24758674

Goyal S, Puri T, Gupta R, Julka P, Rath G. Accessory breast tissue in axilla masquerading as breast cancer recurrence. J Cancer Res Ther. 2008; 4:95–96. PMid:18688128

Ghosn SH, Khatri KA, Bhawan J. Bilateral aberrant axillary breast tissue mimicking lipomas: a report of a case and review of the literature. J Cutan Pathol. 2007; 34(Supp 1):9-13. PMid:17997730

Kajava Y. The proportions of supernumerary nipples in the Finnish population. Duodecim. 1915; 1:143-170.

Youn HJ, Jung SH. Accessory breast carcinoma. Breast Care (Basel). 2009; 4:104–106. PMid:20847887 PMCid:PMC2931069

Isik A, Peker K, Soyturk M, Firat D, Yoruker U, Yilmaz I. Diagnostic evaluation and treatment of patients with rectus abdominis hematoma. Cir Esp. 2015 Nov; 93(9):580-588. PMid:26048431

Firat D, Idiz O, Isik A, Peker K, Atar N, Gul E. Spontaneous Milk Fistula from an Accessory Breast: An Extremely Rare Case. Breast J. 2015 Sep-Oct; 21(5):554-555. PMid:26183695

Velanovich V. Ectopic breast tissue, supernumerary breasts, and supernumerary nipples. South Med J. 1995; 88:903–906. PMid:7660204

Khoummane Nadia, Yousfi Mounia. Bilateral axillary supernumerary breasts. Pan Afr Med J. 2014; 17: 45. PMid:25018795 PMCid:PMC4085903

Loukas M, Clarke P, Tubbs RS. Accessory breasts: a historical and current perspective. Am Surg. 2007; 73(5):525-528. PMid:17521013

Farcy DA, Rabinowitz D, Frank M. Ectopic glandular breast tissue in a lactating young woman. J Emerg Med. 2011; 41:627–629. PMid:21296531

Sadove AM, van Aalst JA. Congenital and acquired pediatric breast anomalies: a review of 20 years' experience. Plast Reconstr Surg. 2005; 115(4):1039-1050. PMid:15793443

Priti PP, Ahmed MSI, Jacob Z, John TN, Samuel JL, Bernard TL. Accessory Breast Tissue. Eplasty. 2012; 12: ic5.

Aydogan F, Baghaki S, Celik V, et al. Surgical treatment of axillary accessory breasts. Am Surg. 2010; 76:270-272. PMid:20349654

Lesavoy MA, Gomez-Garcia A, Nejdl R, Yospur G, Syiau TJ, Chang P. Axillary breast tissue: clinical presentation and surgical treatment. Ann Plast Surg. 1995; 35:356-360. PMid:8585676

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.