DOI: 10.36347/sjams.2020.v08i06.040

Pages: 1618-1621

Fibromatosis colli or childhood tumor of the sternocleidomastoid muscle is a relatively rare cause of neonatal cervical mass. It is one of the causes of so-called congenital torticollis in newborns and infants. The etiopathogenic mechanism of its occurrence is subject to controversy. Its diagnosis uses ultrasound, which reveals a characteristic thickening of the muscle. We report a case of fibromatosis colli in a 14-day-old newborn, received in consultation in the pediatric medical emergencies of Rabat children's hospital in Morocco for a left laterocervical mass and torticollis noted by the parents. We describe through our observation and a review of the literature the clinical, paraclinical and evolutionary aspects of fibromatosis colli in infants.