Fibroadenoma in axillary accessory breast: a case report

Abstract

The mass are among the possible alterations observed in the axilla. When found, the most frequent differential diagnosis are lymphadenopathy, metastatic lymphadenomegaly, lymphoma, lipoma or tumors in the apocrine glands. Besides that, the presence of accessory breast tissue must also be considered and, as the topical breast tissue, can be the target of breast diseases, either benign or malignant. Female patient, 23 years old, with the presence of hardened palpable node in the right axilla. At the ultrasound, it presented characteristics that classified it as Bi-Rads® 4. An aspiration biopsy of the node was performed with fine-needle, which resulted in unsatisfying material. After the explanation of the therapeutic choices, the patient opted for the excision of the axillary node. The anatomical pathological result showed a nodular formation compatible with fibroadenoma. The occurrence of a node in the axillary region is common. However, in the vast majority of times, it is merely an inflammatory response, manifested as a lymphadenomegaly. In case of chronic mass with suspicious characteristics, it is convenient to suspect the presence of lymphoid neoplasms, locoregional metastasis of breast cancer or melanoma and alterations in accessory breast tissue. In young patients, it is important to evaluate the existence of accessory breast tissue with the presence of suspicious axillary node, because, although controversial, some authors believe that such alterations occur more frequently in these patients. Additionally, in cases of inconclusive imaging, an excision of the lesion must be performed for a definite diagnosis.

Borderline phyllodes tumor arising in accessory breast tissue at the axilla

“…The knowledge concerning accessory breast tissue is important to improve the quality of patient care since the diagnosis may be confused with various abnormalities including lymphadenopathy, lipoma, vascular malformation or malignancy. The key to solve this problem lies in understanding the pathology of benign and malignant tumors that are able to occur in accessory breast tissue [ [1] , [2] , [3] ].…”

Dermatitis neglecta in a patient with breast fibroadenoma: case report

“…Histologically, the tumor is composed of ducts and fibrous connective tissue, and can be treated with simple enucleation. Differential diagnosis of giant fibroadenoma includes Phyllodes tumor, inflammatory processes, and benign proliferative lesions 13,14 .…”

Intraductal papilloma in axillary accessory breast: a rare location

“…Although widely known as an uncommon entity, axillary breast tissue accounts for 60%–70% of the ectopic breast tissue 3…”

“…Although widely known as an uncommon entity, axillary breast tissue accounts for 60%-70% of the ectopic breast tissue. 3 The presence of a palpable mass in the axilla poses a real challenge due to the numerous potential differential diagnoses, including lipoma, sebaceous cyst, lymphadenopathy, metastatic disease and, rarely, accessory breast tissue.…”