Recurrent juvenile fibroadenoma of the breast in an adolescent: A case report

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Most breast masses are benign and are rare in adolescent girls. The most frequent tumor is fibroadenoma. Juvenile fibroadenoma is a rare variant of fibroadenoma and is characterized by rapidly enlarging, painless, and unilateral masses occurring at ages between 10 and 18 years.

Patient concerns:

A 17-year-old girl who first presented to a hospital due to a left breast tumor.


Juvenile fibroadenoma of the left breast.


She underwent fibroadenoma excision, but she complained of a mass that presented in her left breast 3 months after surgery. After 2 years of observation, the mass became tender and enlarged. We conducted a wide excision of the tumor. Recurrent juvenile fibroadenoma with hypercellular fibromyxoid stroma of the breast was noted.


The patient is in good general condition without tumor relapses during the 4 months of follow-up.


Recurrent fibroadenomas, particularly those of a large size with a rapid growth rate, in the same breast suggest a high possibility of transformation. We recommend wide tumor resection.

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