Nonpuerperal mastitis in adolescents

Mastitis in non-lactating adolescents is rare and its cause unclear. This retrospective study summarizes 22 such episodes, in 3 of which Staphylococcus aureus was isolated. Serum prolactin levels were normal. Most patients were successfully treated with oral amoxicillin-clavulanic acid. Three patients with bilateral breast cysts had a recurrence.