[Lobular hemangioma of the vestibular larynx]

Lobular capillary hemangioma, or pyogenic granuloma (PG), is a benign vascular tumor that occurs on the skin and mucous membrane in the upper digestive and respiratory tracts in the form of inflammatory hyperplasia, most often in the mouth or nose. Predisposing factors for tumor development include previous trauma, hormonal imbalance, infections, drug side effects, and genetic abnormalities associated with angiogenesis and vascular damage. Since the clinical and endoscopic manifestations of PG are diverse and nonspecific, the results of histological examination are decisive in the diagnosis of this pathology. The literature presents a limited amount of data on the clinic and treatment of tracheal PG and provides isolated publications on the laryngeal localization of PG in adults. In this article, we report on our own clinical observation of PG in the vestibular larynx in a 60-year-old man who complained of a foreign body sensation in the throat, snoring and sleep apnea. Laryngostroboscopy and contrast-enhanced computed tomography revealed a 1.5×1.8 cm formation in the vestibular region, floating during breathing and obstructing the entrance to the larynx. After flexible tracheobronchoscopy with tracheal intubation, the patient underwent direct supporting microlaryngoscopy with the removal of the neoplasm, for which a radio wave electrode was used. The results of histological examination showed neoplastic proliferation of small blood vessels growing in a lobular architecture, with edematous stroma and pronounced inflammatory infiltration, which corresponds to the diagnosis of lobular capillary laryngeal hemangioma.