Rhabdomyomatous mesenchymal hamartoma in the head and neck region: Case reports and literature review of a rare occurrence

SummaryRhabdomyomatous mesenchymal hamartoma (RMH) is an uncommon congenital lesion typically involving the midline structures of the head and neck. Although benign, it is sometimes associated with other congenital malformations. The present study describes three cases of RMH: a 2-month-old girl with a left nostril mass, a 3-year-old boy with a midline neck mass and a 2-month-old boy with a lesion near the sternal notch. The objectives of this report are to inform otolaryngologists about the clinical features of this rare entity and to alert clinicians about its association with congenital anomalies in the head and neck region. We also present a review of the literature.