Publications by authors named "Zeng-chen Ma"

Purpose: To clarify the clinicopathologic features of patients surviving > or =20 years after resection for hepatocellular carcinoma (HCC).

Methods: Between 1961 and 1987, a total of 396 patients underwent hepatic resection for HCC; 53 (13.4%) patients survived > or =20 years, and 343 (86.

View Article and Find Full Text PDF

Purpose: To clarify clinicopathologic differences between patients with intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC), and identify potential factors influencing survival after hepatectomy for ICC.

Methods: Comparison of clinicopathologic data was made between patients who underwent hepatectomy for ICC (n = 272) and HCC (n = 5,829) during the same period. Twenty-five clinicopathologic variables were selected for univariate and multivariate analyses to evaluate their influence on prognosis of ICC.

View Article and Find Full Text PDF

Background: Recurrence after resection of hepatocellular carcinoma (HCC) is frequent and is a major cause of a poor outcome. Most recurrence may occur from the spreading of the original lesion via the intrahepatic portal vein. Cryosurgery has been used for the treatment of various tumors for decades.

View Article and Find Full Text PDF
Article Synopsis
  • This study examined surgical outcomes for hepatocellular carcinoma (HCC) patients with portal vein tumor thrombosis (PVTT) and how survival factors change over time.
  • Data from 382 HCC patients showed declining survival rates over 10 years, but those who experienced tumor recurrence after 2 years had significantly better survival rates compared to those recurring within 2 years.
  • Key prognostic factors included portal infusion chemotherapy and low serum alpha-fetoprotein levels for the first 2 years, while high alanine aminotransferase levels became a negative factor afterward, highlighting the importance of timing in treatment strategies.
View Article and Find Full Text PDF

Background: Focal nodular hyperplasia (FNH), the second most common benign hepatic tumor after hemangioma, is characterized by a stellate central scar and hyperplastic nodules. Although some large FNH may be associated with significant symptoms, more frequently they are discovered incidentally on physical examination or the work-up of unrelated symptoms. Since its nature and pathogenesis are still controversial, accurate diagnosis of FNH based on clinical presentation and radiographic studies is difficult.

View Article and Find Full Text PDF
Article Synopsis
  • The study focused on understanding survival rates and risk factors affecting hepatocellular carcinoma patients with macroscopic portal vein tumor thrombosis after surgery.
  • Analysis of 381 patients showed that survival rates significantly differed based on whether tumor recurrence occurred within or beyond 2 years post-operation.
  • Key findings indicated that certain factors influenced short- and long-term survival, with portal vein infusion chemotherapy and serum alpha-fetoprotein levels being critical in the first 2 years, while alanine aminotransferase levels were more significant afterwards.
View Article and Find Full Text PDF

Background/aims: Recurrence after resection of hepatocellular carcinoma (HCC) is a frequent event. This study evaluated the effect of postoperative interferon alpha (IFN alpha) treatment on recurrence and survival in patients with hepatitis B virus (HBV)-related HCC.

Method: Two hundred and thirty six patients were randomized after resection into IFN alpha treatment (5 micro i.

View Article and Find Full Text PDF

Objective: To determine whether cryohepatectomy is potentially beneficial in reducing the recurrence and prolonging survival for hepatocellular carcinoma (HCC).

Methods: The study included 84 patients who underwent cryohepatectomy, cryosurgery with liquid nitrogen (-196 degrees C) followed by the resection of the frozen tumor by conventional technique, for HCC and were closely follow-up after surgery. Recurrence and survival rates were calculated by the life-table method.

View Article and Find Full Text PDF

Objective: To evaluate the effects of portal vein microscopic and macroscopic tumor thrombi on post-operation patients with hepatocellular carcinoma (HCC).

Methods: Three thousand three hundred and forty eight HCC patients were retrospectively reviewed, which were divided into no portal vein tumor thrombi (PVTT), microscopic PVTT and macroscopic PVTT groups according to the pathology, effects of portal vein microscopic and macroscopic tumor thrombi on post-operation patients's survival were studied by univariate analysis and overall survival was evaluated in each group.

Results: Hazard ratio (HR) of portal vein microscopic tumor thrombi and macroscopic tumor thrombi was 1.

View Article and Find Full Text PDF

Purpose: Second resection has been proved to be a safe and effective treatment for patients with intrahepatic recurrent HCC after primary resection; however, preoperative prognostic factors for outcome following second resection in patients with a hepatitis B virus (HBV) infection background remains to be clarified.

Methods: Fifty-seven patients with intrahepatic recurrent an HCC and HBV infection background received second resection from 1997 to 2003 in our institute. All of them were negative for anti-hepatitis C virus (HCV) and positive regarding HBV profile.

View Article and Find Full Text PDF

Background: Curable outcome of unresectable hepatocellular carcinoma (HCC) was seldom encountered in the past. This study was designed to assess the role of downstaging followed by resection (downstaging-resection) in the improvement of prognosis of unresectable HCC.

Methods: During the period of 1958-2003, a total of 1085 patients were verified surgically to be unresectable.

View Article and Find Full Text PDF

Aim: To evaluate the effect of postoperative adjuvant transcatheter arterial chemoembolization (TACE) on the prognosis of hepatocellular carcinoma (HCC) patients with or without risk factors for the residual tumor.

Methods: From January 1995 to December 1998, 549 consecutive HCC patients undergoing surgical resection were included in this research. There were 185 patients who underwent surgical resection with adjuvant TACE and 364 patients who underwent surgical resection only.

View Article and Find Full Text PDF

Aim: Hepatocellular carcinoma (HCC) with bile duct tumor thrombosis (BDT) is a rare event. The prognosis of this type of patients is very dismal. The aim of this study was to share the experience in the diagnosis and treatment of HCC with BDT, to further improve the prognosis of these patients.

View Article and Find Full Text PDF

Objective: To clarify three-grade criteria of curative resection for primary liver cancer (PLC) and evaluate their clinical significance.

Methods: Criteria of curative resection of PLC were summed up to three grades. Grade I: complete removal of all gross tumors with no residual tumor at the excision margin.

View Article and Find Full Text PDF

Objective: To evaluate the effect of postoperative adjuvant transcatheter arterial chemoembolization (TACE) on hepatocellular carcinoma (HCC) patients with residual tumor.

Methods: The patients were classified into intervention group (with adjuvant TACE) and control group (without adjuvant TACE) who were further stratified to those with high risk (patients with single tumor > 5 cm in diameter, or with multiple tumors, invasion to blood vessels), and low risk factors. Univariate analysis and Cox model were used to analyse prognostic factors.

View Article and Find Full Text PDF

Metastasis remains one of the major challenges before hepatocellular carcinoma (HCC) is finally conquered. This paper summarized a decade's studies on HCC metastasis at the Liver Cancer Institute of Fudan University. We have established a stepwise metastatic human HCC model system, which included a metastatic HCC model in nude mice (LCI-D20), a HCC cell line with high metastatic potential (MHCC97), a relatively low metastatic potential cell clone (MHCC97L) and several stepwise high metastatic potential cell clones (MHCC97H, HCCLM3, and HCCLM6) from their parent MHCC97 cell.

View Article and Find Full Text PDF

Background/aims: Recurrence and metastasis in hepatocellular carcinoma remains a major challenge to further improve survival. High frequency of loss of heterozygosity at D14S62 and D14S51 in tumor tissue has been shown to be closely related to metastasis and recurrence in breast cancer. But, loss of heterozygosity on 14q in plasma and tumor tissue DNA of hepatocellular carcinoma patients has not been investigated.

View Article and Find Full Text PDF

Purpose: Large primary liver cancer (PLC) more than 10 cm in diameter is not infrequently encountered in clinical practice. This study evaluated the clinicopathological features and long-term results after surgery for large PLC.

Methods: Comparison of clinicopathological data between patients with PLC >/=10 cm ( n=1,227) and PLC <10 cm ( n=2,349) during the same period.

View Article and Find Full Text PDF

To understand the molecular mechanisms of metastasis in hepatocellular carcinoma (HCC), it is necessary to identify the accumulating genetic alterations during its progression as well as those responsible for the acquisition of metastatic potential in cancer cells. In our previous study, using comparative genomic hybridization (CGH), we found that loss on chromosome 8p is more frequent in metastatic lesions than in matched primary tumors of HCC. Thus, 8p deletion might contribute to HCC metastasis.

View Article and Find Full Text PDF

Hepatocellular carcinoma (HCC) is one of the most common and aggressive human malignancies. Its high mortality rate is mainly a result of intra-hepatic metastases. We analyzed the expression profiles of HCC samples without or with intra-hepatic metastases.

View Article and Find Full Text PDF

Aim: To confirm if p53 mutation could be a routine predictive marker for the prognosis of hepatocellular carcinoma (HCC) patients.

Methods: Two hundreds and forty-four formalin-fixed paraffin-embedded tumor samples of the patients with HCC receiving liver resection were detected for nuclear accumulation of p53. The percent of P53 immunoreactive tumor cells was scored as 0 to 3+ in P53 positive region (<10% -, 10-30% +, 31-50% ++, >50% +++).

View Article and Find Full Text PDF

By 1996, 2898 patients with pathologically proven hepatocellular carcinoma (HCC) had been treated at the Liver Cancer Institute of Shanghai Medical University. The 5 year survival in the entire series was 36.2%, being increased from 4.

View Article and Find Full Text PDF