Fig. 4From: Intratumoral fibrosis and patterns of immune infiltration in clear cell renal cell carcinomaThe association of CTLA4 and the intratumoral fibrosis in ccRCC. A-B SHG/TPEF image. The green represents collagen fibers. C-D Masson trichrome stain. The blue staining represents collagen fibers. The gray represents cell nucleus. E–F IHC staining for CTLA4. The brown represents the CTLA4 expressionBack to article page