Fig. 4From: P63-negative pulmonary NUT carcinoma arising in the elderly: a case reportNUT immunohistochemistry and Fluorescence in situ hybridization. a NUT immunohistochemistry. Diffusely positive tumor nuclei with a speckled pattern. Bar, 100 μm. b Fluorescence in situ hybridization (FISH). The BRD4-NUT fusion gene was detectedBack to article page