“…Although MCL was more likely to have extranodal involvement, endobronchial involvement is uncommon[ 5 , 6 ]. As far as we know, only 5 cases of MCL with tracheobronchial involvement have been represented in the literature (Table 1 )[ 1 , 2 , 10 - 12 ]. Lymphoma with endobronchial involvement is divided into two types: Diffuse submucosal infiltration (type I) and localized solitary mass (type II)[ 13 ].…”