Fig. 2From: “Evaluation of ROS1 expression and rearrangements in a large cohort of early-stage lung cancer”Microscopic pictures. a Hematoxylin azophloxine saffron (HAS) staining (400x). Adenocarcinoma with confirmed ROS1 fusion. b Same case with strong and diffuse positivity with D4D6 (400x). c FISH Arrow: Split signals. Arrowhead: One fused signal and one single green signal. d Strong and diffuse positivity with SP384 (400x)Back to article page