[A Case of Small Cell Carcinoma of the Pancreas].

A 55-year-old man was admitted to our hospital for jaundice. Magnetic resonance cholangiopancreatography showed a mass in the pancreatic head as well as biliary obstruction. We strongly suspected invasive ductal carcinoma of the pancreas.

[A Case of Remnant Gastric Cancer That Completely Responded to Neoadjuvant S-1 and Cisplatin Therapy].

A 69-year-old man, who had undergone distal gastrectomy for duodenal ulcer, was diagnosed with remnant gastric cancer and jejunal mesenteric lymph node metastasis. To improve curability, we planned 2 courses of S-1 and cisplatin therapy. After chemotherapy, primary lesion and lymph node metastases reduced in size drastically.

[Four Cases of Primary Small Intestinal Cancer].

Primary small intestinal cancer is very rare. We experienced 4 cases from 2001 to 2013. Case 1: A 46-year-old man presented with abdominal pain and melena.

[A case of small intestinal gastrointestinal stromal tumor (GIST) with peritoneal dissemination, treated effectively with molecular target drug after operation].

A 54-year-old man, presenting with sudden onset of abdominal pain, was admitted to our hospital. Blood examination revealed high white blood cell counts and elevated C-reactive protein (CRP) levels. Ultrasonography and computed tomography detected a 12 cm mass in the lower abdomen, some ascites, and multiple small nodules spread through the abdomen.

[A case of juvenile colon cancer with peritoneal dissemination treated effectively by use of resection and chemotherapy].

A 37 -year-old man experienced abdominal pain and vomiting. Computed tomography showed massive ascites and obstruction of the colon by a tumor at the left colic flexure. The tumor was classified as advanced Borrmann type 3 on the basis of a colonoscopy.

[A case of carcinoma arising in a diverticulum of the transverse colon].

A 64 year-old woman presented with advanced, transverse colon cancer arising in the diverticulum. Tumor invasion extended beyond the serosa to the anal side of the colon. Anemia and fatigue progressed after 6 months of iron administration.

[Acute gastric mucosal lesions caused by acute Helicobacter pylori infection -clinical outcomes of six cases and problems in the diagnosis of H. pylori infection].

We analyzed the ratio of positive test results in various diagnostic methods for Helicobacter pylori infection and the clinical presentations in six cases of acute gastric mucosal lesions (AGML) caused by acute H. pylori. At onset, five cases tested negative for serum antibodies; one had a positive result, but the antibody titer increased with time.

Very rare case of large obstructive myxofibrosarcoma of the right ventricle assessed with multi-diagnostic imaging techniques.

Primary myxofibrosarcoma of the heart is quite rare. We herein present the case of a 56-year-old man who presented with large obstructive myxofibrosarcoma of the right ventricle (RV), as assessed on multi-diagnostic imaging techniques (multidetector row computed tomography, magnetic resonance imaging and positron emission tomography). Most previous cases of cardiac myxofibrosarcoma have been reported in the left atrium and ventricle.

[A case of solitary ectopic medullary carcinoma in the right submandibular region].

A 77-year-old woman consulted our hospital because of an indolent mass in the right submandibular region, which developed approximately 4 months previously. Ultrasonography revealed a 19.5×9.

[A case of advanced gastric cancer with esophageal severe dysplasia resected after neoadjuvant S-1+cisplatin therapy].

A 72-year-old man was admitted to our hospital complaining of upper abdominal pain and back pain. Advanced gastric cancer was found at the fundus of the stomach, and severe dysplasia was found at the lower esophagus. We proceeded with neoadjuvant chemotherapy (S-1+CDDP) because the lymph nodes in the lesser curvature of the stomach were metastasized and invasion of the pancreas and some vessels was suspected by computed tomography.

[A case of hepatectomy for gastrointestinal stromal tumor with multiple liver metastasis after size reduction in a Jehovah's Witness patient].

The patient is a 42-year-old man who is a Jehovah's Witness. For the duodenal gastrointestinal stromal tumor, duodenal segmental resection and a duodenal jejunum anastomosis were indicated. He took imatinib for 2 years after the operation.

Clinical characteristics of 12 cases of appendiceal diverticulitis: a comparison with 378 cases of acute appendicitis.

Purpose: Previous authors have suggested that a diverticulum of the vermiform appendix has a higher risk of perforation than acute appendicitis. Therefore, this study compared appendiceal diverticulitis with acute appendicitis to explain the characteristics of appendiceal diverticulitis.

Methods: Data for this study came from a retrospective analysis at the Department of Surgery at Fukuoka Tokushukai Hospital from January 2005 to June 2008.

[A case of mucinous adenocarcinoma of descending colon with abscess formation and solitary metastasis at right side of the abdomen].

A 59-year-old man realized a left lower abdominal pain and palpable mass about a month ago. He was admitted to our hospital because of the pain and high fever. Blood examinations revealed high levels of white blood cell count and CRP.

[A case of ruptured gastrointestinal stromal tumor of the duodenum with intraabdominal bleeding].

We report a case of ruptured gastrointestinal stromal tumor (GIST) of the duodenum with intraabdominal bleeding. A 50-year-old man was admitted to our hospital because of sudden epigastralgia. Enhanced computed tomography (CT) showed a tumor measuring about 14 cm in diameter on the ventral side of the right kidney and intrapelvic fluid collection.

Differential transmission and postnatal outcomes in triplets with intrauterine cytomegalovirus infection.

We present a case of triplets with intrauterine cytomegalovirus (CMV) infection, each of whom showed differential transmission, placental pathology, and postnatal outcome. The first- and second-born infants were both vigorous and asymptomatic at birth, although the first-, but not the second-born, triplet had a high copy number of CMV DNA in the peripheral blood (1.2 × 10³ copy/mL).

Squamous cell carcinoma of the hilar bile duct.

We herein report a rare case of squamous cell carcinoma of the hilar bile duct. A 66-year-old Japanese male patient was admitted to our hospital because of appetite loss and jaundice. Abdominal computed tomography revealed an enhanced mass measuring 10 × 30 mm in the hilar bile duct region.

Suppression of the rice heterotrimeric G protein β-subunit gene, RGB1, causes dwarfism and browning of internodes and lamina joint regions.

In the present study, we investigated the function of the heterotrimeric G protein β-subunit (Gβ) gene (RGB1) in rice. RGB1 knock-down lines were generated in the wild type and d1-5, a mutant deficient for the heterotrimeric G protein α-subunit (Gα) gene (RGA1). Both transgenic lines showed browning of the lamina joint regions and nodes that could be attributed to a reduction of RGB1 function, as the abnormality was not observed in d1-5.

[Clinical improvement of membranous nephropathy after a resection of rectal cancer].

A 71-year-old man was admitted by systemically massive edema and advanced rectal cancer. His hemoglobin or serum albumin level was 7.5 g/dL or 1.

Small multicentric pancreatic carcinoma usefully diagnosed by positron emission tomography.

Pancreatic carcinoma has a poor prognosis, and early detection is essential for potentially curative resection. Despite a wide array of diagnostic tools, pre-operative detection of small pancreatic carcinomas is difficult. We report a case of pancreatic carcinoma that was bicentric and small.

Malignant transformation of meningeal melanocytoma: a case report.

Intracranial meningeal melanocytoma is an uncommon tumor that is considered benign. We formerly reported an intracranial meningeal melanocytoma. Here we report a extremely rare case of malignant transformation of this tumor.