Endobronchial Leiomyoma – When CT Demonstrates the Tumor: A Radio-Pathological Correlation

Endobronchial leiomyomas are rare benign tumors, accounting for less than 2% of all benign lung tumors. Known to arise from the smooth muscle of the tracheobronchial tree, leiomyomas occur in parenchymal, endotracheal, or endobronchial locations. Endobronchial lesions constitute about 33% of all pulmonary leiomyomas. Literature on primary endobronchial leiomyomas is extremely limited. Symptomatology depends on the degree of endoluminal bronchial obstruction.