Fig. 1From: A unique presentation of pulmonary disease in advanced systemic mastocytosis, proven by the presence of mast cells in bronchoalveolar lavage: a case reportBone marrow histopathology. a A hematoxylin and eosin stain of the second bone marrow core biopsy showed a highly hypercellular marrow with multiple spindle-shaped mast cells (example within the white oval). b Gömöri stain reveals extensive reticulin fibers, correlating with myelofibrosis grade 3. c Tryptase stain shows diffuse infiltration of mast cells. (Published with consent from the Pathology Department of Erasmus MC, Rotterdam.)Back to article page