Figure 5From: Carcinoma involving the gallbladder: a retrospective review of 23 cases - pitfalls in diagnosis of gallbladder carcinomaMixed types of GBC present difficulty with differential diagnosis. A: Gallbladder tumor showing well-differentiated tubular adenocarcinoma in the muscle (H&E stain, X100), B: A monotonous proliferation of small round cells with hyperchromatic nuclei and scant cytoplasm, resembling NEC (H&E stain, X200).Back to article page