日本語フィールド
著者：*Kohei Yamada, Masatsugu Hiraki, Toshiya Tanaka, Daisuke Mori, Futoshi Tanaka, Tatsuya Manabe, Hitoshi Aibe, Kenji Kitahara, Hirokazu Noshiro題名：A case of idiopathic myointimal hyperplasia of the mesenteric veins presenting with small bowel obstruction 発表情報：Surg Case Rep 巻: 7 号: 1 ページ: 17キーワード：Bowel obstruction; Enterocolic lymphocytic phlebitis; Idiopathic myointimal hyperplasia of mesenteric veins; Ileum; Inflammatory bowel disease; Mesenteric inflammatory veno-occlusive disease概要：Background: Idiopathic myointimal hyperplasia of the mesenteric veins (IMHMV) is a rare ischemic bowel disease with venous occlusion resulting from the proliferation of smooth muscles in the venous intima. In most patients, the disease affects rectosigmoid colon and causes persistent abdominal pain and hematochezia, which is similar to inflammatory bowel disease (IBD). In addition, it is difficult to make a precise diagnosis of IMHMV without surgery.
Case presentation: An 81-year-old woman was admitted to our hospital with mild abdominal pain, nausea and vomiting. Repeated adhesive ileus was suspected due to the previous open and laparoscopic surgeries. Surgery was planned to treat small bowel obstruction. Intraoperatively no adhesive lesions were observed. However, a mass lesion was seen at the terminal ileum, which was suspected to have caused her bowel obstruction. Partial resection of the small intestine was performed. Macroscopic and histopathological examinations of the excised specimen showed circumferential ulceration with scarring, a thickened venous wall with active inflammation, and fibrotic changes that consequently produced stenosis and obstruction of the venous lumen in the subserosa. Additionally, Elastica van Gieson staining demonstrated thickening of the venous intima. The final diagnosis was IMHMV. At two years and 8 months after the operation, the patient was well without any additional medication.
Conclusion: IMHMV of the small intestine is rare. We described a case of IMHMV that was associated with ileus.抄録：英語フィールド
Author：*Kohei Yamada, Masatsugu Hiraki, Toshiya Tanaka, Daisuke Mori, Futoshi Tanaka, Tatsuya Manabe, Hitoshi Aibe, Kenji Kitahara, Hirokazu NoshiroTitle：A case of idiopathic myointimal hyperplasia of the mesenteric veins presenting with small bowel obstruction Announcement information:Surg Case Rep Vol: 7 Issue: 1 Page: 17Keyword：Bowel obstruction; Enterocolic lymphocytic phlebitis; Idiopathic myointimal hyperplasia of mesenteric veins; Ileum; Inflammatory bowel disease; Mesenteric inflammatory veno-occlusive diseaseAn abstract：Background: Idiopathic myointimal hyperplasia of the mesenteric veins (IMHMV) is a rare ischemic bowel disease with venous occlusion resulting from the proliferation of smooth muscles in the venous intima. In most patients, the disease affects rectosigmoid colon and causes persistent abdominal pain and hematochezia, which is similar to inflammatory bowel disease (IBD). In addition, it is difficult to make a precise diagnosis of IMHMV without surgery.
Case presentation: An 81-year-old woman was admitted to our hospital with mild abdominal pain, nausea and vomiting. Repeated adhesive ileus was suspected due to the previous open and laparoscopic surgeries. Surgery was planned to treat small bowel obstruction. Intraoperatively no adhesive lesions were observed. However, a mass lesion was seen at the terminal ileum, which was suspected to have caused her bowel obstruction. Partial resection of the small intestine was performed. Macroscopic and histopathological examinations of the excised specimen showed circumferential ulceration with scarring, a thickened venous wall with active inflammation, and fibrotic changes that consequently produced stenosis and obstruction of the venous lumen in the subserosa. Additionally, Elastica van Gieson staining demonstrated thickening of the venous intima. The final diagnosis was IMHMV. At two years and 8 months after the operation, the patient was well without any additional medication.
Conclusion: IMHMV of the small intestine is rare. We described a case of IMHMV that was associated with ileus.