Fig. 3From: Primary bronchial myeloid sarcoma mimicking bronchogenic carcinoma: a case reportPathological findings of the endobronchial biopsy. a The cytoplasm of the tumour cells is partially basophilic with large round, oval or lobulated nuclei in which 1–2 small nucleoli can be found (haematoxylin and eosin, × 400). b Immunochemistry showed positive staining for myeloperoxidase (MPO) in neoplastic cellsBack to article page