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Eosinophilic gastroenteritis is a fairly uncommon condition. It has been suggested that allergic reactions may have played a role in the development of this illness. The case of a 66-year-old woman who had a total hysterectomy due to a right ovarian tumor is described here. At this operation, a sodium hyaluronate carboxymethylcellulose bioresorbable membrane (Seprafilm ® ) was used. She was admitted to our hospital 47 days after the operation with abdominal pain. Laboratory data indicated elevated WBC (29450/μl) and eosinophilia (69.2%), and CT scan showed thickening of intestinal wall and ascites around there. Ascites cytology showed a significant increase of eosinophils (94.0%). She began taking oral steroids after being diagnosed with eosinophilic gastroenteritis, and her symptoms improved quickly. Despite the fact that Seprafilm ® was thought to be a reliable and safe tool, it was suggested that a foreign body reaction to Seprafilm ® could lead to eosinophilic gastroenteritis.

A 70-year-old woman received H. pylori eradication therapy in March, 201X-12. She was admitted to our department because early gastric cancer was detected on esophagogastroduodenoscopy, and we performed endoscopic submucosal dissection (ESD) in June, 201X-2. The final diagnosis was well-differentiated tubular adenocarcinoma. Afterwards, we performed ESD two times (in November, 201X-1, and in March, 201X), and final diagnoses were both adenocarcinoma of fundic gland type.

A 60-year-old man visited our department because of watery diarrhea that lasted for several months. On colonoscopy, we diagnosed him as ulcerative colitis. Additionally, a laterally spreading tumor (non-granular type) was discovered in the rectum above the peritoneal reflection (Ra). The patient was initially treated with 5-aminosalicylic acid. Four months later, endoscopic submucosal dissection was performed. Histopathology examination showed a sporadic tubular adenoma. Complete en bloc resection was performed.

A woman in her 70s was an outpatient at our hospital. Esophagogastroduodenoscopy revealed a slightly elevated lesion with erosion, 10mm in diameter, located at the greater curvature of the antrum. Helicobacter pylori testing yielded negative results, and there was no atrophy of the gastric mucosa. Biopsy revealed a well-differentiated tubular adenocarcinoma. Complete en bloc resection was performed via endoscopic submucosal dissection, in accordance with the current Japanese guidelines. The gastric adenocarcinoma of the fundic gland type and coexisting with a hyperplastic or fundic gland polyp was negative according to the histological examination.

A 79-year-old woman with a history of pyothorax was admitted with a 4-day history of abdominal distension. Physical examination revealed marked abdominal distention, absent bowel sounds, and a vesicular rash over the left Th8-10 dermatome. Abdominal radiography showed gaseous distension of the colon and ileum. Colonoscopy excluded any obstructive process of the colon. Laboratory findings yielded positive results for serum IgM and IgG against the varicella zoster virus (VZV) . Paralytic ileus associated with the VZV was therefore diagnosed. The ileus improved after conservative treatment with intravenous acyclovir. Although shingles is frequently encountered, it is a rare cause of paralytic ileus. In the future, the VZV should be considered as one of the causes of paralytic ileus, and complete resolution can be achieved with conservative management.