Pyogenic Granuloma of the Larynx: A Case Report.

Introduction: Pyogenic granulomas are benign, painless vascular tumors on the skin and mucosal surfaces. They are commonly found in the head and neck region, although their occurrence in the larynx is rare. The term "lobular capillary hemangioma" is now used to describe the histological appearance of these tumors more accurately. Predisposing factors for pyogenic granuloma of the larynx have been linked to prior traumatic injuries, such as intubation, previous surgeries, or laryngopharyngeal reflux.

Case Presentation: A 33-year-old male visited our clinic with complaints of progressive dysphonia and choking for two months. The patient did not experience dysphagia or dyspnea. There was no history of previous intubation, gastroesophageal reflux disease, or other chronic illnesses. Upon laryngoscopic examination, a polypoid lesion measuring 25×8 mm was found on the posterior commissure of the right vocal cord. No abnormalities were observed during the ear and nose examinations.

Discussion: Pyogenic granuloma, or lobular capillary hemangioma, is a hyperplastic lesion that develops on the skin and mucous membranes. It often occurs in response to trauma or hormonal factors. Histologically, pyogenic granulomas differ from granulation tissues due to their lobular arrangement of capillaries in the deeper portions of the lesion. The term "lobular capillary hemangioma" has been recently introduced to emphasize this phenomenon. Some of the conditions considered in the differential diagnosis include hemangioma, hemangioendothelioma, angiofibroma, angiosarcoma, Kaposi sarcoma, Wegener's granuloma, Crohn's disease, granulomatous infections such as tuberculosis and histoplasmosis, traumatic granuloma, carcinosarcoma, as well as verrucous and squamous cell carcinoma.

Conclusion: We present a case report of lobular capillary hemangioma of the larynx, including its histopathological diagnosis and management course.