Fig. 3From: Primary squamous cell carcinoma of the pancreas with a large pseudocyst of the pancreas as the first manifestation: a rare case report and literature reviewBased on histopathology combined with immunohistochemistry, the patient was diagnosed with squamous cell carcinoma (a HE × 100, b HE × 200). Immunohistochemical analysis showed the following: P40 ( +) (c) and Ki-67 (30%) (d)Back to article page