Image IQ: 30-year-old, Breastfeeding, with Nontender Breast Lump

Poll

A 30-year-old who has been breastfeeding for three months presents for evaluation of a right breast lump that is nontender and has been present for two weeks.

A 30-year-old presents for evaluation of a right breast lump that is nontender and has been present for two weeks. She has been breastfeeding for three months. The patient undergoes standard mammography with a tangential magnified superior inferior oblique (SIO) as well as an ultrasound of both breasts. Upon a physical examination, the lesion is palpated and is mobile.

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What's your diagnosis?

Lactating adenoma
Fibroadenoma
Juvenile papillomatosis
Galactocele
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