Hepatocellular adenoma(HCA) was recently classified into four pathological subtypes. There have been few studies describing the findings of contrast-enhanced ultrasonography(CEUS) of each type. Our case concerns a 78-...Hepatocellular adenoma(HCA) was recently classified into four pathological subtypes. There have been few studies describing the findings of contrast-enhanced ultrasonography(CEUS) of each type. Our case concerns a 78-year-old man who had undergone routine medical check-ups for hepatitis C for 11 years. Abdominal ultrasonography showed a 28 mm, hypo-echoic mass in the segment 4 of the liver. His integrating amount of drinking was 670 kg convert into ethanol. CEUS with Sonazoid demonstrated mild uniform hypo-enhancement with inflow of microbubbles from the periphery of the tumor in the arterial phase, and heterogeneously hypo-enhancement in the post vascular phase. Because the mass increased in size within 3 mo, a well differentiated hepatocellular carcinoma was suspected, and hepatic resection was performed. Microscopic findings showed homogeneous cell proliferation with low grade atypia, infiltration of inflammatory cells, ductular reactions, fatty deposit in part, and sinusoidal dilation. Immunohistochemistry revealed geographic positive for serum amyloid A(SAA), focal positive for glutaminesynthetase, diffuse and strong positive for C-reactive protein, and positive for liver-type fatty acid binding protein. These pathological features corresponded to that of an inflammatory HCA. However, we could not make a clear diagnosis, because HCAs were defined as not to arise in cirrhotic liver. Finally, this tumor was diagnosed as a SAA positive hepatocellular neoplasm.展开更多
AIM To detect the expression of CD44v6 mRNA and nm23-H1 mRNA in hepatocellular carcinoma (HCC) by in situ hybridization, and to evaluate the relationship between their expression and also relationship between their ex...AIM To detect the expression of CD44v6 mRNA and nm23-H1 mRNA in hepatocellular carcinoma (HCC) by in situ hybridization, and to evaluate the relationship between their expression and also relationship between their expressions and tumor invasion and metastasis.METHODS CD44v6 cDNA probe was synthesized with PCR technique and the nm23-H1 cRNA probe by in vitro transcription. The expression of CD44v6 mRNA and nm23-H1 mRNA was detected by in situ hybridization.RESULTS In group with high invasion and metastasis potential, the positive rates of CD44v6 mRNA and nm23-H1 mRNA were 80% (8/10) and 40% (4/10), in group with poor invasion and metastasis potential, they were 21.7% (5/23) and 91.3% (21/23). There was a positive correlation between the expression of CD44v6 mRNA and tumor invasion and metastasis potential in HCC (P＜0.01), and a reverse correlation between the expression of nm23-H1 mRNA and tumor invasion and metastasis potential (P＜0.01) and a reverse correlation in the expression between CD44v6 mRNA and nm23-H1 mRNA in HCC (P＜0.01).CONCLUSION Detection of CD44v6 mRNA and nm23-H1 mRNA may be useful for tumor invasion and metastasis in HCC.INTRODUCTIONCD44 is a cell surface transmembrane glycoprotein. As a kind of adhesive molecule, it participates in cell-cell and cell-matrix adhesion and interactions. Many studies revealed a correlation between high-level expression of CD44, especially CD44v and tumor invasion, metastasis and prognosis. The exon 6v containing isoforms may be an independent diagnostic parameter[1,2]. Some other studies, however, had different results[3,4]. Some researches showed a reverse correlation between the expression of nm23-H1 mRNA and tumor metastasis[5,6]. In order to evaluate the relationship between the expression of CD44v6 mRNA and nm23-H1 mRNA and tumor invasive and metastatic potential in HCC and to evaluate the relationship in the expression between CD44v6 mRNA and nm23-H1 mRNA, we detected their expression in HCC by in situ hybridization.展开更多
AIM To investigate the clinical features ofFADD and TRADD expressions in primaryhepatocellular carcinoma(HCC)and todetermine their relationship with hepaticapoptosis.METHODS FADD and TRADD expressions weredetected by ...AIM To investigate the clinical features ofFADD and TRADD expressions in primaryhepatocellular carcinoma(HCC)and todetermine their relationship with hepaticapoptosis.METHODS FADD and TRADD expressions weredetected by immunohistochemistry and hepaticapoptosis were determined by in situ end-labeling(ISEL).RESULTS Ten(25.6%)cases of HCC weredetected to express FADD protein.The positiverate in HCC is lower than that in non-cancerousadjacent liver tissues(62.5%)(P【0.05).Inthose of grade Ⅰ-Ⅱ,8(38.1%)cases wereFADD positive,while only 2/18(11.1%)casesof grade Ⅲ-Ⅳ had detectable FADD protein(P【0.05).No relationship was found betweenFADD expression and other clinical features,such as gender,age,tumor size,differentiationor metastasis.ISEL positive cells can be seen inall cases of HCC.The hepatic apoptosis wasassociated with FADD expression as moreapoptotic cells were detected in those caseswhich had moderately to strongly positiveFADD,as compared with negative or weakpositive FADD cases(P【0.05).No relationshipwas found between FADD expression and hepaticapoptosis in non-cancerous adjacent livertissues.Fifteen of 39(38.5%)cases of HCCwere found positive for TRADD protein,andsimilar positive rate(37.5%)in non-cancerousadjacent liver tissues(P】0.05).The expressionof TRADD is correlated with HCC differentiation, as only 22.2% of moderately to highlydifferentiated HCC showed positive TRADDprotein,while as high as 52.4% of poorlydifferentiated HCC had TRADD(P【0.05),Norelationship was found between TRADDexpression and gender,age,tumor size or gradeor metastasis,although 42.9% of HCC of gradeⅠ/Ⅱ showed positive TRADD which wasslightly higher than that of grade Ⅲ/Ⅳ(33.3%,P】0.05).Hepatic apoptosis was not related toTRADD expression in HCC or non-cancerousadjacent liver tissues.CONCLUSION Loss of FADD expression playsan important role in HCC carcinogenesis,andexpression of TRADD also contributes to HCCdevelopment.The cell apoptosis in HCC isassociated with FADD expression.However,theexpression of TRADD does not correlate wellwith hepatic apoptosis in HCC.展开更多
AIM To investigate the expression of proliferating cell nuclear antigen (PCNA) and its correlation with histological grade, mitotic count and metastasis in human hepatocellular carcinoma (HCC). METHODS PCNA express...AIM To investigate the expression of proliferating cell nuclear antigen (PCNA) and its correlation with histological grade, mitotic count and metastasis in human hepatocellular carcinoma (HCC). METHODS PCNA expression was detected immunohistochemically by using monoclonal antibody PC10 in 80 cases of HCC. PCNA labeling index (LI) was assessed by counting the positive staining nuclei per 500 cells. RESULTS PCNA LI ranged from 1 8% to 91 4% (mean=33 9%) in the cancerous tissues, and was significantly related to the tumor size, histological grade, mitotic count, as well as the metastasis of HCC. CONCLUSION Proliferative activity in HCC, as defined by PCNA immunohistochemical analysis, is significantly related to tumor invasiveness. It is also of potentially prognostic value in patients with this tumor.展开更多
文摘Hepatocellular adenoma(HCA) was recently classified into four pathological subtypes. There have been few studies describing the findings of contrast-enhanced ultrasonography(CEUS) of each type. Our case concerns a 78-year-old man who had undergone routine medical check-ups for hepatitis C for 11 years. Abdominal ultrasonography showed a 28 mm, hypo-echoic mass in the segment 4 of the liver. His integrating amount of drinking was 670 kg convert into ethanol. CEUS with Sonazoid demonstrated mild uniform hypo-enhancement with inflow of microbubbles from the periphery of the tumor in the arterial phase, and heterogeneously hypo-enhancement in the post vascular phase. Because the mass increased in size within 3 mo, a well differentiated hepatocellular carcinoma was suspected, and hepatic resection was performed. Microscopic findings showed homogeneous cell proliferation with low grade atypia, infiltration of inflammatory cells, ductular reactions, fatty deposit in part, and sinusoidal dilation. Immunohistochemistry revealed geographic positive for serum amyloid A(SAA), focal positive for glutaminesynthetase, diffuse and strong positive for C-reactive protein, and positive for liver-type fatty acid binding protein. These pathological features corresponded to that of an inflammatory HCA. However, we could not make a clear diagnosis, because HCAs were defined as not to arise in cirrhotic liver. Finally, this tumor was diagnosed as a SAA positive hepatocellular neoplasm.
基金supported by the Research Unit in Palliative Care for Adults and Older Adults,Faculty of Nursing,Thammasat University,Thailand and Bualuang ASEAN Chair Professor Fund for the project leading to this publication.
文摘AIM To detect the expression of CD44v6 mRNA and nm23-H1 mRNA in hepatocellular carcinoma (HCC) by in situ hybridization, and to evaluate the relationship between their expression and also relationship between their expressions and tumor invasion and metastasis.METHODS CD44v6 cDNA probe was synthesized with PCR technique and the nm23-H1 cRNA probe by in vitro transcription. The expression of CD44v6 mRNA and nm23-H1 mRNA was detected by in situ hybridization.RESULTS In group with high invasion and metastasis potential, the positive rates of CD44v6 mRNA and nm23-H1 mRNA were 80% (8/10) and 40% (4/10), in group with poor invasion and metastasis potential, they were 21.7% (5/23) and 91.3% (21/23). There was a positive correlation between the expression of CD44v6 mRNA and tumor invasion and metastasis potential in HCC (P＜0.01), and a reverse correlation between the expression of nm23-H1 mRNA and tumor invasion and metastasis potential (P＜0.01) and a reverse correlation in the expression between CD44v6 mRNA and nm23-H1 mRNA in HCC (P＜0.01).CONCLUSION Detection of CD44v6 mRNA and nm23-H1 mRNA may be useful for tumor invasion and metastasis in HCC.INTRODUCTIONCD44 is a cell surface transmembrane glycoprotein. As a kind of adhesive molecule, it participates in cell-cell and cell-matrix adhesion and interactions. Many studies revealed a correlation between high-level expression of CD44, especially CD44v and tumor invasion, metastasis and prognosis. The exon 6v containing isoforms may be an independent diagnostic parameter[1,2]. Some other studies, however, had different results[3,4]. Some researches showed a reverse correlation between the expression of nm23-H1 mRNA and tumor metastasis[5,6]. In order to evaluate the relationship between the expression of CD44v6 mRNA and nm23-H1 mRNA and tumor invasive and metastatic potential in HCC and to evaluate the relationship in the expression between CD44v6 mRNA and nm23-H1 mRNA, we detected their expression in HCC by in situ hybridization.
文摘AIM To investigate the clinical features ofFADD and TRADD expressions in primaryhepatocellular carcinoma(HCC)and todetermine their relationship with hepaticapoptosis.METHODS FADD and TRADD expressions weredetected by immunohistochemistry and hepaticapoptosis were determined by in situ end-labeling(ISEL).RESULTS Ten(25.6%)cases of HCC weredetected to express FADD protein.The positiverate in HCC is lower than that in non-cancerousadjacent liver tissues(62.5%)(P【0.05).Inthose of grade Ⅰ-Ⅱ,8(38.1%)cases wereFADD positive,while only 2/18(11.1%)casesof grade Ⅲ-Ⅳ had detectable FADD protein(P【0.05).No relationship was found betweenFADD expression and other clinical features,such as gender,age,tumor size,differentiationor metastasis.ISEL positive cells can be seen inall cases of HCC.The hepatic apoptosis wasassociated with FADD expression as moreapoptotic cells were detected in those caseswhich had moderately to strongly positiveFADD,as compared with negative or weakpositive FADD cases(P【0.05).No relationshipwas found between FADD expression and hepaticapoptosis in non-cancerous adjacent livertissues.Fifteen of 39(38.5%)cases of HCCwere found positive for TRADD protein,andsimilar positive rate(37.5%)in non-cancerousadjacent liver tissues(P】0.05).The expressionof TRADD is correlated with HCC differentiation, as only 22.2% of moderately to highlydifferentiated HCC showed positive TRADDprotein,while as high as 52.4% of poorlydifferentiated HCC had TRADD(P【0.05),Norelationship was found between TRADDexpression and gender,age,tumor size or gradeor metastasis,although 42.9% of HCC of gradeⅠ/Ⅱ showed positive TRADD which wasslightly higher than that of grade Ⅲ/Ⅳ(33.3%,P】0.05).Hepatic apoptosis was not related toTRADD expression in HCC or non-cancerousadjacent liver tissues.CONCLUSION Loss of FADD expression playsan important role in HCC carcinogenesis,andexpression of TRADD also contributes to HCCdevelopment.The cell apoptosis in HCC isassociated with FADD expression.However,theexpression of TRADD does not correlate wellwith hepatic apoptosis in HCC.
文摘AIM To investigate the expression of proliferating cell nuclear antigen (PCNA) and its correlation with histological grade, mitotic count and metastasis in human hepatocellular carcinoma (HCC). METHODS PCNA expression was detected immunohistochemically by using monoclonal antibody PC10 in 80 cases of HCC. PCNA labeling index (LI) was assessed by counting the positive staining nuclei per 500 cells. RESULTS PCNA LI ranged from 1 8% to 91 4% (mean=33 9%) in the cancerous tissues, and was significantly related to the tumor size, histological grade, mitotic count, as well as the metastasis of HCC. CONCLUSION Proliferative activity in HCC, as defined by PCNA immunohistochemical analysis, is significantly related to tumor invasiveness. It is also of potentially prognostic value in patients with this tumor.
