Fig. 1From: Long-term survival of a patient with recurrent gallbladder carcinoma, treated with chemotherapy, immunotherapy, and surgery: a case reportRepresentative hematoxylin–eosin-stained images and CD3+ immunohistochemistry results in primary gallbladder cancer specimen. a Specimen with tumor-infiltrating lymphocytes. Right: × 200; left (insert): × 50. b Lymphocytes infiltrate tumor stroma. Brown chromogen: CD3+ T cells. Right: × 200; left (insert): × 50Back to article page