Home  About us  Contact
 

Duct Invasion (duct + invasion)

Distribution by Scientific Domains
Medical Sciences100%

Kinds of Duct Invasion

  • bile duct invasion
    		•

    Selected Abstracts

    Surgical results for hepatocellular carcinoma with bile duct invasion: A clinicopathologic comparison between macroscopic and microscopic tumor thrombus

    JOURNAL OF SURGICAL ONCOLOGY, Issue 4 2005
    Minoru Esaki MD
    Abstract Background The aim of this study was to evaluate the prognostic factors and long-term results after surgery in patients with hepatocellular carcinoma (HCC) with bile duct invasion. Methods The records of 38 HCC patients with microscopic (tumor thrombus was found in more than the second order branch of the biliary tree; n,=,19) and macroscopic (tumor thrombus was found in no more than the second order branch of the biliary tree; n,=,19) bile duct invasion were reviewed in this study. Survival rates were calculated with regard to 18 clinicopathological factors. A log-rank analysis was performed to identify which factors predict the prognosis. The relationships between the degree of bile duct invasion and 17 clinicopathologic factors were also compared. Results The overall 1-, 3-, and 5-year survival rates were 79%, 45%, and 33%, respectively. The indicators of a favorable prognosis included no intrahepatic metastases, curative surgical resection, and macroscopic bile duct invasion. Conclusion We found a favorable long-term postoperative result for HCC patients with macroscopic bile duct invasion. Even if HCC tumor thrombus is recognized in the major branches of bile duct, extensive and curative surgical treatment should be recommended when hepatic functional reserve is satisfactory without intrahepatic metastases. J. Surg. Oncol. 2005;90:226,232. © 2005 Wiley-Liss, Inc. [source]

    Relationship between Lens culinaris agglutinin-reactive ,-fetoprotein and pathologic features of hepatocellular carcinoma

    LIVER INTERNATIONAL, Issue 4 2005
    Toshifumi Tada
    Abstract: Aim: We investigated pathological features of Lens culinaris agglutinin-reactive ,-fetoprotein (AFP-L3)-positive hepatocellular carcinoma (HCC) in order to seek a pathological basis of poor prognosis of HCC patients with elevated AFP-L3. Methods: A total of 111 patients with HCC ,5 cm in diameter who underwent hepatic resection were studied. Serum AFP-L3 concentration was measured within a month prior to surgery by lectin-affinity electrophoresis coupled with antibody-affinity blotting, and expressed as AFP-L3 percentage of total AFP. AFP-L3 of 10% or higher was judged to be positive. Pathologic features of resected HCC specimens were evaluated and classified concerning growth pattern (expansive or infiltrative growth), capsule formation, capsule infiltration, septal formation, portal vein invasion, hepatic vein invasion, bile duct invasion, and intrahepatic metastasis. These macroscopic and microscopic findings were compared between AFP-L3-positive and negative HCC specimens. Results: Thirty-three (29.7%) were positive for AFP-L3. The prevalence of HCC with infiltrative growth, with capsule infiltration, with septum formation, with portal vein invasion, and with hepatic vein invasion was significantly higher in AFP-L3-positive group (P=0.0121, 0.0290, 0.0442, 0.0314, and 0.0433, respectively). These pathologic features reportedly indicate the progression of the tumor. Conclusions: AFP-L3-positive HCC had several pathologic features of progressed state of HCC, which accounted for the AFP-L3 as an indicator of poor prognosis of HCC. [source]

    Perineural invasion has a negative impact on survival of patients with gallbladder carcinoma

    BRITISH JOURNAL OF SURGERY (NOW INCLUDES EUROPEAN JOURNAL OF SURGERY), Issue 9 2002
    R. Yamaguchi
    Background: The clinical significance of perineural invasion of gallbladder carcinoma remains unclear. The aim of this study was to elucidate the incidence and mode of perineural invasion of gallbladder carcinoma and clarify its prognostic significance. Methods: A clinicopathological study was conducted on 68 patients who underwent attempted curative resection for gallbladder carcinoma. According to the pathological tumour node metastasis (pTNM) classification of the Union Internacional Contra la Cancrum, there were five (7 per cent), nine (13 per cent), 20 (29 per cent) and 34 (50 per cent) patients with pT1, pT2, pT3 and pT4 disease respectively. Twenty patients (29 per cent) had pM1 disease, including involved para-aortic nodes, liver metastases and localized dissemination. Results: The overall incidence of perineural invasion was 71 per cent (48 of 68 patients). Forty-four (96 per cent) of 46 patients with extrahepatic bile duct invasion had perineural invasion. Although several histological factors were associated with perineural invasion, multivariate analysis demonstrated that extrahepatic bile duct invasion was the only significant factor correlated with perineural invasion (odds ratio 99·0, P < 0·001). The perineural invasion index, defined as the ratio of the number of involved nerves to the total number of nerves examined, was significantly higher at the centre than in the proximal and distal parts of the tumour in the 46 patients with extrahepatic bile duct invasion (P < 0·001). The 5-year survival rate for patients with perineural invasion was significantly lower than that for patients with no invasion (7 versus 72 per cent; P < 0·001). Cox proportional hazard analysis identified perineural invasion (relative risk (RR) 5·3, P < 0·001) and lymph node metastasis (RR 2·5, P = 0·008) as significant independent prognostic factors. Conclusion: Perineural invasion is common in advanced gallbladder carcinoma and has a significant negative impact on patient survival. © 2002 British Journal of Surgery Society Ltd [source]