laryngeal disorder primary laryngeal lymphangioma https://www.malacards.org/card/primary_laryngeal_lymphangioma GARD:0019891 SCTID:763617006 UMLS:C4706521 Primary laryngeal lymphangioma is a rare, benign, congenital malformation of the lymphatic system characterized by a polypoidal, variable-sized, soft tissue mass located in the larynx. Most lesions manifest by the 2nd year of life and, depending on the size, patients may present with changes in voice, dysphagia, stridor, airway obstruction and/or respiratory distress. Cystic hygroma of the neck is frequently associated. MEDGEN:1634144 MONDO:0015314 Orphanet:137926