[A case of mantle cell lymphoma with meningioma].

Mantle cell lymphoma (MCL) is an uncommon type of gastrointestinal lymphoma. MCL is a distinct subtype of B-cell non-Hodgkin lymphomas. The major subtype of MCL is characterized by the presence of multiple lymphomatous polyposis (MLP), in which multiple polyps are observed along the gastrointestinal tract.

Reactivation of tuberculosis in hepatocellular carcinoma treated with transcatheter arterial chemoembolization: A report of 3 cases.

Pulmonary tuberculosis is an opportunistic infection that can be reactivated in immunocompromised conditions, for example, in malignancy or after liver transplantation. Hepatocellular carcinoma (HCC) has a high mortality rate because it is frequently diagnosed at an advanced stage. Although surgical resection is the established curative measure for HCC, it is only feasible for early-stage HCC.

Clinical outcomes of endoscopic submucosal dissection for undifferentiated or submucosal invasive early gastric cancer.

Background/aims: Early gastric cancer (EGC) that is undifferentiated or shows submucosal invasion has not been generally accepted as an indication for endoscopic treatment. But recently, experiences with endoscopic submucosal dissection (ESD) for undifferentiated EGC or submucosal invasive (SM) EGC have increased. The aim of this study was to evaluate clinical outcomes of ESD for EGC with undifferentiation or submucosal invasion.

[Comparison of the toxicities and efficacies of the combination chemotherapy regimens in advanced gastric cancer patients who achieved complete response after chemotherapy].

Background/aims: We retrospectively analyzed comparative toxicities and efficacies of chemotherapy regimens in advanced gastric cancer (AGC) patients who achieved complete response (CR) after chemotherapy.

Methods: We reviewed the medical records of 1,203 patients, who were pathologically diagnosed as AGC in a single center between January 2001 and October 2007. On the basis of the Response Evaluation Criteria in Solid Tumors, CR was evaluated with abdominal computed tomography.

[A case of gastric lymphoepithelioma-like carcinoma presenting as panperitonitis by perforation of stomach].

Gastric lymphoepithelioma-like carcinoma is a rare carcinoma among gastric malignant tumor but has a good prognosis. The carcinoma has histologic feature characterized by small nest of cancer cells mixed with lymphoid stroma. We report a case with lymphoepithelioma-like carcinoma of stomach initially presenting as panperitonitis because of spontaneous tumor perforation.

[A case of a retroperitoneal schwannoma presenting as hypermetabolic mass in PET-CT].

Schwannoma is a benign neoplasm of the Schwann cells of the neural sheath. Most schwannomas occur in the head and neck, and extremities and rarely in the retroperitoneal space. The differentiation of a schwannoma from other malignant tumor or benign tumor is very difficult on a preoperative examination with ultrasonography, computed tomography or magnetic resonance imaging.

[Importance of medication adherence to peginterferon-ribavirin combination therapy in patients with chronic hepatitis C].

Background/aims: The combination therapy with peginterferon and ribavirin is a standard treatment for patients with chronic hepatitis C. However, because of the long duration of the treatment and many complications, the reduction of adherence frequently occur. This study aimed to assess influences of reduced medication adherence in the combination therapy of chronic hepatitis C patients.

[A case of Peutz-Jeghers syndrome with intraductal papillary mucinous carcinoma of pancreas].

Peutz-Jeghers syndrome (PJS), which is characterized by multiple hamartomatous polyps of the gastrointestinal tract and mucocutaneous pigmentation, is a rare autosomal dominant disease. This syndrome is often represented as a surgical emergency with complications of the polyps such as intussusception, small bowel obstruction, bleeding, and volvulus. In particular, many studies have reported that patients with this syndrome have a high risk of gastrointestinal or extragastrointestinal malignancy including gastric, duodenal, jejunal, ileal, and colonic carcinoma as well as malignancies involving other organs such as the gallbladder, biliary tract, pancreas, tonsils, breast, and reproductive system.

[Docetaxel-cisplatin-5-FU combination chemotherapy as a first-line treatment in patients with metastatic or recurred gastric cancer].

Background/aims: The purpose of this study was to investigate the efficacy and safety of 'docetaxel-5-FU-cisplatin' combination chemotherapy as a first-line treatment in patients with metastatic or recurrent gastric cancer.

Methods: We investigated a total of 51 patients who were diagnosed as pathologically proven gastric cancer and received 'docetaxel-5-FU-cisplatin' combination chemotherapy between March 2001 and March 2006. All the cases were surgically unresectable because they were either metastatic or recurred gastric cancer.