Early gastric cancer (EGC), which is defined as a lesion confined to the mucosa or the submucosa, regardless of the presence of lymph node metastasis, has a good prognosis than advanced gastric cancer. Generally, untreated early gastric cancer progress to advanced cancer cancer (AGC). But natural history of EGC is unclear and different from AGC. For example, EGC can have long natural history and frequently multiple synchronous lesions than AGC. And rarely, EGC can last as EGC for several years. This is the case lasting synchronous double EGC for 10 years in the elderly patient.
Aged ; Humans ; Lymph Nodes ; Mucous Membrane ; Natural History ; Neoplasm Metastasis ; Prognosis ; Stomach Neoplasms

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. However, there are few reported cases of an association of this syndrome with extraintestinal malignancy. In addition to that, there is no reported case of this syndrome with malignant tumor or intraductal papillary mucinous tumor of pancreas in Korea. We experienced a case of PJS accompanying intraductal papillary mucinous carcinoma of the pancreas, therefore we report this case with literatures reviewed.
Adenocarcinoma, Mucinous/*diagnosis/pathology/secondary ; Carcinoma, Papillary/*diagnosis/pathology/secondary ; Humans ; Intussusception/surgery ; Jejunum/surgery ; Male ; Middle Aged ; Pancreatic Neoplasms/complications/*diagnosis/pathology ; Peutz-Jeghers Syndrome/complications/*diagnosis ; Tomography, X-Ray Computed

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. However, there are few reported cases of an association of this syndrome with extraintestinal malignancy. In addition to that, there is no reported case of this syndrome with malignant tumor or intraductal papillary mucinous tumor of pancreas in Korea. We experienced a case of PJS accompanying intraductal papillary mucinous carcinoma of the pancreas, therefore we report this case with literatures reviewed.
Adenocarcinoma, Mucinous/*diagnosis/pathology/secondary ; Carcinoma, Papillary/*diagnosis/pathology/secondary ; Humans ; Intussusception/surgery ; Jejunum/surgery ; Male ; Middle Aged ; Pancreatic Neoplasms/complications/*diagnosis/pathology ; Peutz-Jeghers Syndrome/complications/*diagnosis ; Tomography, X-Ray Computed

Barrett's esophagus is defined as the replacement of normal squamous epithelium of distal esophagus with specialized columnar epithelium. This condition is considered to be a premalignant lesion of esophageal adenocarcinoma. Barrett's esophagus is classified into long-segment (> or = 3 cm in length) and short-segment ( <3 cm in length). Detection of the former is more difficult. Adenocarcinomas arising from short-segment Barrett's esophagus are uncommon in Korea. Barrett's adenocarcinoma restricted to the mucosa can be treated by endoscopic mucosectomy. In recent years, endoscopic submucosal dissection for early esophageal cancer has been extensively applied because it is a reliable method to achieve en bloc resection. In this paper, we report a case of esophageal adenocarcinoma arising from ultrashort-segment Barrett's esophagus, which was successfully resected by endoscopic submucosal dissection.
Adenocarcinoma ; Barrett Esophagus ; Epithelium ; Esophageal Neoplasms ; Esophagus ; Korea ; Mucous Membrane

BACKGROUND/AIMS: The purpose of this study is to investigate the effectiveness and safety of the use of uncovered self-expandable metallic stents as a palliative therapy for gastric outlet obstruction caused by stomach cancer. METHODS: A total of 36 patients who underwent uncovered stent insertion were investigated. Hanarostents (uncovered pyloric/duodenal stents, M.I. Tech Co., Ltd.) were used in the procedures. The technical success rate, clinical success rate, presence of clinical symptoms and complications were estimated during the study period. RESULTS: The technical success rate for stent replacement was 97.2% (35 out of 36 patients) and the clinical success rate was 91.7% (33 out of 36 patients). The mean dysphagia scores before and after the procedures were 2.44 and 0.92, respectively. The median hospital stay after stenting was 10 days and the mean follow-up period was 91 days. Thirteen patients died during the follow-up period (mean survival, 70 days). The complication rate was 22.2% (8 out of 36 patients). Restenosis occurred in four cases, bleeding in two cases, pain in one case and stent migration in one case. There were no deaths related to the procedures. CONCLUSIONS: These findings suggest that placement of uncovered self-expandable metallic stents for gastric outlet obstruction caused by stomach cancer results in good symptomatic improvement with a low rate of complications.
Deglutition Disorders ; Follow-Up Studies ; Gastric Outlet Obstruction ; Hemorrhage ; Humans ; Length of Stay ; Palliative Care ; Stents ; Stomach ; Stomach Neoplasms

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. Furthermore, the lesion with increased fluorodeoxyglucose uptake in PET-CT cannot exclude malignant tumor. Therefore, this lesion needs surgical excision and a histological examination with immunohistochemical staining. We report a case of schwannoma occuring in the retroperitoneal space that incidentally discovered by PET-CT for health-check up. Pathologic confirmation by laparoscopic excision was done.
Aged ; Diagnosis, Differential ; Fluorodeoxyglucose F18/diagnostic use ; Humans ; Male ; Neurilemmoma/*diagnosis/pathology/surgery ; Positron-Emission Tomography ; Retroperitoneal Neoplasms/*diagnosis/pathology/surgery ; Tomography, X-Ray Computed

Here we report a case of a patient with gastric undifferentiated carcinoma associated with choriocarcinomatous and hepatoid carcinomatous differentiation. A 62-year-old man was referred after a healthcare screening gastroscopy. Gastroscopy revealed an approximately 3x3 cm ulcerofungating mass in the posterior wall of the antrum. Biopsy results revealed a moderately differentiated adenocarcinoma. The initial serum alpha-FP levels were above 350 ng/mL. An abdominal CT scan revealed focal wall thickening along the greater curvature of the gastric antrum, with perigastric fat invasion and enlarged multiple perigastric lymph nodes. He underwent a palliative radical subtotal gastrectomy and gastroduodenostomy with dissection of the enlarged lymph nodes. Postsurgical histological examination revealed an undifferentiated carcinoma associated with choriocarcinomatous and hepatoid carcinomatous differentiation. Immunohistochemical staining revealed that the tumor cells were positive for human chorionic gonadotropin (hCG), alpha-FP, and anti-hepatocyte antibody.
Adenocarcinoma ; Biopsy ; Carcinoma ; Choriocarcinoma ; Chorionic Gonadotropin ; Delivery of Health Care ; Female ; Gastrectomy ; Gastroscopy ; Humans ; Lymph Nodes ; Mass Screening ; Middle Aged ; Pregnancy ; Pyloric Antrum

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 56-year-old man visited our emergency room because of epigastric pain. A preoperative abdominal CT scan showed a massive pneumoperitoneum in the upper abdomen, and the presence of gastric cancer in the lesser curvature of the stomach. An emergent laparotomy was performed followed by radical subtotal gastrectomy. Pathologic examination revealed that the tumor was a lymphoepithelioma-like gastric carcinoma.
Carcinoma/*diagnosis/pathology/therapy ; Combined Modality Therapy ; Humans ; Lymphoma/radiography/surgery ; Male ; Middle Aged ; Pneumoperitoneum/etiology/radiography/surgery ; Rupture, Spontaneous ; Stomach Neoplasms/*complications/*diagnosis/pathology/therapy ; Stomach Rupture/*complications/radiography/surgery ; Tomography, X-Ray Computed

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. The malignant cells express pan B-cell marker and the T-cell marker cluster of differentiation 5. The chromosomal translocation t(11;14)(q13;q32) that causes cyclin D1 overexpression is commonly observed on the cytogenetic analysis of MCL. Survival improvement has recently been achieved for patient with MCL by the successful introduction of monoclonal antibodies and dose-intensified approaches for treatment, including autologous stem cell transplantation strategies. Some reports suggest that there is an increased incidence of second malignancies in patients with MCL or lymphoma. We report a case of MCL involving the colon; the patient was a 60-year-old man who complained of low abdominal discomfort during defecation. During the workup, a meningioma was unexpectedly discovered. On analysis, the tumor was found to be a t(11;14)-negative and non-MLP-type MCL.
Chromosomes, Human, Pair 11 ; Chromosomes, Human, Pair 14 ; Cyclin D1/metabolism ; Humans ; Lymphoma, Mantle-Cell/*diagnosis/genetics/metabolism ; Magnetic Resonance Imaging ; Male ; Meningeal Neoplasms/complications/*diagnosis/pathology ; Meningioma/complications/*diagnosis/pathology ; Middle Aged ; Positron-Emission Tomography ; Translocation, Genetic

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. METHODS: Between August 2005 and August 2009, among 210 EGCs treated using ESD at our hospital, 18 lesions were diagnosed as undifferentiated gastric cancer and 41 as SM gastric cancer. A retrospective analysis was done on the medical records of these patients. RESULTS: Mean follow-up periods were 19.39+/-11.2 months. During the follow-up period, local recurrence was noted in 4 lesions. Local recurrence rates of the EGC groups (group 1, mucosal cancer with undifferentiation; group 2, SM cancer with differentiation; group 3, SM cancer with undifferentiation) were 10%, 4.5%, and 50%, respectively. Groups 1 and 2 were not significantly different in local recurrence rates compared to the mucosal cancer with differentiation group (p=0.061, p=0.125, respectively). The undifferentiated EGC group was significantly lower in curability using ESD than the differentiated EGC group (55.6% vs. 89.6%, p=0.000). The curability of the SM EGC group was lower than the mucosal EGC group (36.6% vs. 98.9%). CONCLUSIONS: Complete resection using ESD is difficult in undifferentiated and SM gastric cancers. SM cancer with undifferentiation should be treated immediately by salvage operation. For mucosal cancer with undifferentiation or SM cancer with differentiation, one should consider careful short-term follow-up.
Follow-Up Studies ; Medical Records ; Recurrence ; Retrospective Studies ; Stomach Neoplasms