摘要：

The patient underwent fiber‐optic bronchoscopy (FOB), endobronchial ultrasound‐guided (EBUS) FNA of the mediastinal lymph nodes, and endobronchial biopsy (EBB). FOB revealed a bosselated, edematous‐looking mucosa over the trachea–bronchial tree, especially over the right main bronchus, leading to narrowing of the right main and the upper lobe bronchus [Figure 2]. EBUS cell block showed aggregates of small lymphoid cells with scant cytoplasm raising the suspicion of a low‐grade lymphoma. EBB demonstrated bronchial mucosa lymphoepithelial lesion – infiltration of the bronchial mucosa by small round lymphoid cells with scant cytoplasm classically seen in MALT lymphoma [Figure 3].

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