title: Galactocele in a Male Infant with Transient Hyperprolactinaemia: An Extremely Rare Cause of Breast Enlargement in Children.
abstract: Galactocele is a rare breast condition in infants. Here, we report a 16-month-old boy who developed progressive left breast enlargement. Ultrasonography and magnetic resonance imaging revealed a 4 cm cystic lesion at left breast. Hormonal assay showed transient hyperprolactinaemia with no known cause identified. Subsequently, galactocele was confirmed on histopathological examination after complete surgical excision. No recurrence was observed on regular follow-up.
authors.affiliation: Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong.
authors.forename: C T
authors.identifier: 0000-0001-6252-9362
authors.initials: CT
authors.lastname: Lau
authors.affiliation: Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong.
authors.forename: K K Y
authors.initials: KK
authors.lastname: Wong
authors.affiliation: Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong.
authors.forename: P
authors.initials: P
authors.lastname: Tam