A rare case of pediatric Nontraumatic Myositis Ossificans in the posterior triangle

Publication date: May 2016
Source:International Journal of Pediatric Otorhinolaryngology, Volume 84
Author(s): Jonathan Simmonds, Nizar Taki, Ilana Chilton, Mark Vecchiotti
BackgroundMyositis Ossificans Cicumscripta is a rare condition characterized by aberrant bone formation in paramuscular soft tissue of the extremities usually associated with trauma or a genetic mutation. Very few cases involve the head or neck and it is rarely found in the pediatric population.ObjectivesWe present a case of a 5-month old with a rapidly growing posterior neck mass suspicious for neoplasia, which was treated with surgical resection and found to be a non-traumatic, non-genetic form of Myositis Ossificans. The workup, treatment, and findings of the patient are outlined and a review of the literature on this disease is discussed.ConclusionMyositis Ossificans is characterized by aberrant bone formation typically occurring after trauma but may be secondary to an underlying genetic abnormality. The case presented in the absence of trauma or an underlying genetic abnormality and is therefore an exceedingly rare instance of the sporadic form that presented spontaneously in the head and neck of a pediatric patient.



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