Abstract
Objective To evaluate the clinical significance of a modified T-staging system for hilar cholangiocarcinoma(HCC).Methods From 1999 through 2007,98 HCC patients were stratified by the Tstaging system.Statistical differences were evaluated for resectability,radical resectability,concomitant partial hepatectomy,partial portal vein resection,histological differentiation,lymph node characteristic and survival rate.Results There were 43 HCC patients graded at T1,37 at T2 and 18 at T3 respectively.The resectability rates were 65%,40% and 11%,and radical resection was achieved in 46%,21% and 0% respectively.Resectabilities decreased with increasing T stage(χ~2=15,P 0.05),partial portal vein resection for 3% and 33%(χ~2=4,P 0.05),respectively.The 1-,3-and 5-year survival rates in patients with T1 lesions were 58%,30%and 18%,in 12 patients it was 43%,11%and 0.The 1-and 2-year survival rate in T3 patients was 12%and 0.Patients witll T1 or T2 stage tumors had a significantly longer survival than those with T3(P 0.05).Conclusions The T-staging system is appropriate for preoperative evaluation in HCC patients.However,its correlation with tumor histological differentiation and lymphatic characteristics needs to be elucidated. Key words: Cholangiocarcinoma; Neoplasm staging; Histopathology; Metastasis
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