Abstract
Infantile myofibromatosis is a common fibrous tumor of infancy, however still considered a rarity. A newborn boy was examined due to inspiratory stridor and subcostal retractions since birth. Several subcutaneous nodules were present on the trunk and legs. Transnasal fiberoptic laryngoscopy and trachea-laryngoscopy showed discrete edema of the anterior part of the vocal cords but no other apparent abnormality. MRI raised suspicion of a laryngeal tumor. Through an external laryngofissure a lesion extending from the right hemilarynx was exposed and excised in fractions. Pathological examination showed infantile myofibromatosis. Stridor in newborns is frequently caused by congenital laryngeal anomalies, i.e. laryngomalacia but a neoplastic process should be considered as a differential diagnosis.
Published Version
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