021. Tracheal capillary hemangioma-rare localization: case report

Background: Capillary hemangioma usually presents as a painless, bleeding mass that occurs on cutaneous and mucosal surfaces of the upper aerodigestive tract. It is commonly located on the lips, nose, oral cavity and tongue, especially in adolescent men, children and women of reproductive age.

Objective: The presentation of a rare case, according to the location, of a tracheal capillary hemangioma.

Methods: A 55-year-old male presented to our Hospital with persistent cough and hemoptysis. Bronchoscopic evaluation: purple, exophytic tracheal lesion, 1.2 cm causing partial obstruction. Initially, we received two tissue samples from the lesion, measuring 0.1 and 0.2 cm for histological examination. After that the entire lesion removal was followed.

Results: The histological examination of the biopsy material revealed a lesion with polypoid formation that was covered by stratified squamous epithelium without atypia or dysplasia. There were numerous thin-walled vascular spaces (SMA+) in dense array, with open or depressed lumens, that were smeared of small, slightly protruding endothelial cells (CD34+, CD31+, Ck8/18-, TTF-1-, Ck7-). The diagnosis of a capillary hemangioma was made. This diagnosis was also confirmed in the material that was sent for histological examination in second time.

Conclusions: The pathogenesis of capillary hemangioma has not been exactly determined. However, previous injury, some infectious agents, drugs and hormonal shifts seem to be associated with this entity. The most common presenting symptoms are recurrent bleeding and obstruction phenomena. In our case, the patient, after the lesion removal, had no complication or further symptoms.

Keywords: Trachea; hemangioma; neoangiogenesis