Abstract:
Background: Lactating adenoses are benign breast tumors that are usually seen both during pregnancy and lactation period. There is not yet clear information about the exact pathophysiology and management of such cases in the literature. We report a case of bilateral complex growth lactating adenomas which clinically and pathologically mimic inflammatory breast carcinoma in a 19-year-old lactating woman.
Case Presentation: A 19-year-old female, primigravida presented 3 months after giving birth to a healthy baby, with huge multiple bilateral breast masses started to grow two years prior to the presentation (age 17). Clinical assessment, biopsy and Immunohistochemistry cannot rule out malignancy completely. The main diagnosis was complex bilateral lactating adenosis. A simple mastectomy of the left mass with active surveillance of the right mass has been carried out as a treatment of choice for this case.
Conclusion: Menstruation and pregnancy in young females can be followed by an aggressive type of lactating adenosis with a complex macro-histological picture that mimics cancer growth. Moreover, under the influence of puerperal hormones, bilateral breast involvement can be inevitable. A simple mastectomy can be treatment of choice for complex benign lactating adenosis when malignancy cannot be rule out.
Keywords: breast cancer, lactating adenosis, fibroadenoma