title: Unilateral gynaecomastia in a 16-month-old boy with neurofibromatosis type 1 - case report and brief review of the literature.
abstract: Neurofibromatosis type 1 (NF1) is an autosomal dominant disease that shows high penetrance with a wide variability in the phenotype. Prepubertal enlargement of the breast in male subjects affected by this condition is well known, but rarely reported. The present case report describes diagnosis and therapy of unilateral gynaecomastia in a toddler showing integumental stigmata of NF1. Furthermore, the report provides a brief review of the literature concerning this finding in NF1. According to this review, the present case appears to be one of the youngest NF1-affected males affected by gynaecomastia that has been reported.
authors.affiliation: Department of Oral and Craniomaxillofacial Surgery, Eppendorf University Hospital, University of Hamburg, Hamburg, Germany.
authors.forename: Reinhard E
authors.initials: RE
authors.lastname: Friedrich
authors.affiliation: Institute of Neuropathology, Eppendorf University Hospital, University of Hamburg, Hamburg, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Hagel
authors.affiliation: Department of Neurology, Eppendorf University Hospital, University of Hamburg, Hamburg, Germany.
authors.forename: Victor-Felix
authors.initials: VF
authors.lastname: Mautner
keywords: breast surgery; gynaecomastia; neurofibroma; neurofibromatosis type 1