Periampullary carcinoma is one kind of malignant tumor in digestive system. It causes obstructive jaundice at early stage.

壶腹周围癌为消化系统恶性肿瘤，虽较早引起梗阻性黄疸，但早期诊断较困难。

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Objective: To assess the value of levels of CA19-9 and CEA in serum and ascites in the diagnosis of malignant tumor in digestive system.

目的：评价血清和腹水中CA19 - 9、CEA含量变化对消化系统恶性肿瘤的诊断价值。

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Objective to evaluate the clinical significance of serum tumor supplied group of factor (TSGF) in diagnosing malignant tumor of digestive system.

目的评价血清肿瘤相关物质(TSGF)在消化系统恶性肿瘤诊断中的临床意义。

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