Infrecuente tumor benigno: lipoma de laringe e hipofaringe

Abstract

Introduction.- Lipomas are the most common mesenchimal benign tumours of the body, only 15% are localizated on head and neck. They represent 0,5% of larynx beningn tumours, less than 100 cases are described in literature. Clinic include disphonia, disphagia and airway obstruction. The diagnosis is based on the clinical symptoms, physichal exploration and image techniques. Direct laryngoscopy localizate and detect lesion CT shows a tipically fat density pattern. Treatment is based on extirpation and must includes all the mass. Clinic case.- We bring a new case of laryngeal lipomata, in a 46 years old male. Since 10 years ago, he had lateral laryngeal moving with swallowing. In last months, solid disphagia, airway obstruction and pharyngolalia. In nasofibroscopy there was a globulous depressible mass on larynx posterior wall, unde left areytenoeppiglottic fold, which occupies laryngeal space, and get move with swallowing. CT and MR were compatible with benign fat mass. Left lateral pharynguectomy, and extirpation of a 6x4 cm encapsulated lipomatous mass was performed. The anatomopathologycal result was mature adipocyte tissue, compatible with lipoma Conclussion.- Lipoma is a rare tumour at larynx. Due to its slow and silent clinical evolution, many years should go by since first symptoms untill definitive diagnostic, it should compromise the upper airway. Pharyngeal and laryngeal endoscopy, give us the initial diagnostic approach, complemented with image techniques as CT and MR, which are very usefull in masses with fat components.