[A case of hepatic peribiliary cysts in a patient with alcoholic liver cirrhosis].

Hepatic peribiliary cysts (HPCs) are characterized by cystic dilatations of the peribiliary glands located throughout the branches of the biliary systems. Specifically, they are mainly located along the hepatic hilum and major portal tracts. The natural history and prognosis of HPCs are uncertain.

Factors predisposing metastatic tumor antigen 1 overexpression in hepatitis B virus associated hepatocellular carcinoma.

Background/aim: Overexpression of metastatic tumor antigen-1 (MTA-1) is suggested to be associated with frequent postoperative recurrence and poor survival of hepatocellular carcinoma (HCC) patients. In this study, we intended to determine clinical factors predisposing the overexpression of MTA-1 in patients with hepatitis B virus (HBV)-associated HCC and also examine whether MTA-1 overexpression affects the survival periods of these patients treated with curative surgical resection.

Methods: A total of 303 patients with HBV-associated HCC who underwent curative surgical resection were subjected.

The clinical factors for predicting severe diverticulitis in Korea: a comparison with Western countries.

Background/aims: It is unclear whether the risk factors associated with complicated diverticulitis in Asian and Western countries are the same. We evaluated the risk factors associated with severe diverticulitis (SD) in Korea and compared the clinical characteristics of diverticulitis according to location.

Methods: A retrospective review of 190 patients hospitalized with acute diverticulitis from January 2005 to June 2010 was conducted.

High HBV-DNA titer in surrounding liver rather than in hepatocellular carcinoma tissue predisposes to recurrence after curative surgical resection.

Goals: In this study the authors intended to investigate the relationship between intrahepatic hepatitis B virus (HBV)-DNA concentrations and posthepatectomy recurrence of HBV-associated hepatocellular carcinoma (HCC).

Background: High HBV-DNA level is strongly associated with HCC development in chronic HBV infection and considered to be a risk factor of HCC recurrence.

Study: A total of 109 patients with HBV-associated HCC who underwent curative surgical resection were followed up every 3 to 6 months for a median of 82 months.

[Clinical factors predicting for neoplastic transformation of gastric hyperplastic polyps].

Background/aims: Hyperplastic polyps (HPs) are the most common cause of all benign epithelial gastric polyps, constituting 30 to 93%. Although gastric HPs are usually considered as benign lesions compared with adenoma, neoplastic transformation has been known to occur rarely. We aimed to identify the clinical factors of gastric HPs predicting for neoplastic transformation.

[A case of Chlamydia trachomatis peritonitis mimicking tuberculous peritonitis].

Lymphocytic ascites with low serum-ascites albumin gradient (SAAG) are observed mainly in tuberculous peritonitis, peritoneal carcinomatosis, and pancreatic disease. However, pelvic inflammatory disease (PID) induced generalized peritonitis causing diffuse ascites has been rarely described. We report a 26-year old female patient, who was diagnosed as generalized peritonitis with diffuse ascites due to Chlamydia trachomatis infection.

[A case of tuberculous peritonitis developed during chemotherapy for tuberculous pleurisy as paradoxical response].

After the start of anti-tuberculous treatment, paradoxical worsening of tuberculous lesions has been described. However, abdominal tuberculosis as paradoxical response is relatively rare. This report describes the 26-year-old female who suffered from peritoneal tuberculosis while treating tuberculous pleurisy with anti-tuberculous medications.

Ileal stenosis occurred 3 months after blunt abdominal trauma.

We present a case of ileal stenosis with delayed presentation 3 months after car accident. Ileal stenosis after blunt abdominal trauma is a rare clinical entity. We present CT and small bowel series 3 months after trauma.

[A case of hemophagocytic syndrome complicated by acute viral hepatitis A infection].

Hemophagocytic syndrome (HPS) is a rare but serious condition that is histopathologically characterized by activation of macrophage or histiocytes with hemophagocytosis in bone marrow and reticuloendothelial systems. Clinically it presents with high fever, hepatosplenomegaly, pancytopenia, liver dysfunction, and hyperferritinemia. Hepatitis A virus is a very rare cause of secondary HPS.

[A case of spontaneous regression of hepatocellular carcinoma with multiple lung metastases].

Spontaneous regression of hepatocellular carcinoma (HCC) is extremely rare. We report a case of 67-year-old man having HBV-associated HCC with multiple lung metastases which regressed spontaneously. The patient had single liver mass and received surgical resection.

Overexpression of metastasis-associated protein 2 is associated with hepatocellular carcinoma size and differentiation.

Background And Aim: Metastasis is a multistep event in which neoplastic cells detach from the tumor, migrate, disseminate, extravasate, and eventually proliferate at the secondary distant sites. Hepatocellular carcinoma (HCC) is characterized by hypervascularity and frequent metastasis. Recently, metastasis-associated proteins were identified and named metastatic tumor antigens (MTA) 1, 2, and 3.

[An adult case of small bowel intussusception caused by hemangioma presenting with intestinal bleeding].

Intussusception is primarily a disease of children, and is relatively rare in adults. Unlike childhood intussusception, adult intussusception has an identifiable leading lesion such as malignant or benign neoplasm. However, intussusception caused by hemangioma is very rare.

[Co-circulation of two genotypes of hepatitis A virus from sporadic cases in northeastern area of Seoul, Korea].

Background: In previous studies, most hepatitis A virus (HAV) isolates had been genotype IA in Korea. Recently, a small number of different genotypes were reported with an upsurge of acute hepatitis by HAV. We investigated the distribution of HAV genotypes.

Metastatic tumor antigen 1 is closely associated with frequent postoperative recurrence and poor survival in patients with hepatocellular carcinoma.

Metastatic tumor antigen 1 (MTA1) is known to play a role in angiogenic processes as a stabilizer of hypoxia-inducible factor 1-alpha (HIF1-alpha). In this study, we examined whether overexpression of MTA1 affects the recurrence of hepatocellular carcinoma (HCC) after surgical resection and the survival of the patients. A total of 506 HCC patients who underwent hepatic resection were included in the study.