Figure 2.

Bronchoscopic findings in primary lung extranodal NK/T-cell lymphoma (ENKTL). (A) Bronchoscopic view of the right bronchus, showing diffuse mucosal erythema, swelling, and hemorrhagic lesions. The mucosa appears significantly thickened and inflamed, contributing to the narrowing of the bronchial lumen. (B) Bronchoscopic view demonstrating focal areas of necrosis and ulceration in the bronchial mucosa, typical of NK/T-cell lymphoma involvement. The bronchial lumen is further constricted due to the infiltration of malignant cells and associated tissue damage. These bronchoscopic findings highlight the characteristic mucosal involvement in primary lung ENKTL, including mucosal thickening, hemorrhage, and necrosis, contributing to airway obstruction and respiratory symptoms.