Idiopathic Myointimal Hyperplasia of the Mesenteric Veins of the Colon

Chudy-Onwugaje, Kenechukwu; Ali, Osman; Umoren, M. U.

doi:10.1016/j.cgh.2019.07.030

Cited by 8 publications

(7 citation statements)

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“…Cratered ulcers were described in one case. The discrepancy between clinical and endoscopic findings in IMHMV has led to the clinical mismanagement of most reported cases of IMHMV as IBD ( 32 ).…”

Section: Discussionmentioning

confidence: 99%

Idiopathic Myointimal Hyperplasia of the Mesenteric Veins: A Case Report and Scoping Review of Previously Reported Cases From Clinical Features to Treatment

Shu

Zhang

et al. 2022

Front. Med.

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Idiopathic myointimal hyperplasia of the mesenteric veins (IMHMV) is a rare and poorly understood disease. It is characterized by non-thrombotic and non-inflammatory occlusion of the mesenteric veins secondary to intimal smooth muscle hyperplasia. The etiology of IMHMV is unknown, and its clinical presentations include abdominal pain, bloody diarrhea, and weight loss. IMHMV is commonly mistaken for inflammatory bowel disease because of the similarity in symptoms and endoscopic findings. Herein, we report the case of a 64-year-old man with IMHMV and present an overview of all reported cases of IMHMV. In this review, we analyzed 70 cases to summarize the etiology, clinical manifestations, and diagnosis of IMHMV and hope to raise clinicians’ awareness of this entity.

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Section: Discussionmentioning

confidence: 99%

Idiopathic Myointimal Hyperplasia of the Mesenteric Veins: A Case Report and Scoping Review of Previously Reported Cases From Clinical Features to Treatment

Shu

Zhang

et al. 2022

Front. Med.

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“…The mean age of IMHMV patients is 58 with 80% male and 20% female (Table 1). [4][5][6][7][8][9][10][11][12][13][14] The descending colon is involved in 36%, sigmoid in 79% and rectum in 55%. 94% present with abdominal pain and 67% experience hematochezia.…”

Section: Discussionmentioning

confidence: 99%

“…The mean age of the IMHMV patients was 58 years, and 80% were men and 20% women ( Table I , Table II ). 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 The descending colon was involved in 36%, sigmoid in 79%, and rectum in 55%. In addition, 94% presented with abdominal pain and 67% had experienced hematochezia; 71% had diarrhea alone, 10% both diarrhea and constipation, and 8% constipation alone.…”

Section: Discussionmentioning

confidence: 99%

Capturing the often-elusive diagnosis of idiopathic myointimal hyperplasia of mesenteric veins

Han

Mehrotra²,

Gomez³

et al. 2022

Journal of Vascular Surgery Cases, Innovations and Techniques

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“…[4]. A search of the PubMed database for articles published until April 2020 with the key words "idiopathic myointimal hyperplasia of mesenteric veins" or "IMHMV", yielded 37 cases of IMHMV, with the rectosigmoid colon affected in most cases (83.8%; 31/37) [1,[4][5][6][7][8][9]. In contrast, the small intestine was affected in only five cases (13.5%; 5/37) [4,[10][11][12][13].…”

Section: Discussionmentioning

confidence: 99%

“…Table 1 shows a summary of five previous cases with small intestinal IMHMV and our present case. Regarding colonic IMHMV, the clinical symptoms included persistent abdominal pain, tenesmus and hematochezia, and colonoscopic and CECT findings included stricture, ulcers, and mucosal erythema with intestinal wall thickening, which are similar to the findings of IBD or ischemic colitis [1,[4][5][6][7][8][9]. In contrast, small bowel IMHMV is more common in females than in males.…”

Section: Discussionmentioning

confidence: 99%

A case of idiopathic myointimal hyperplasia of the mesenteric veins presenting with small bowel obstruction

et al. 2021

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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.

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Idiopathic Myointimal Hyperplasia of the Mesenteric Veins of the Colon

Cited by 8 publications

References 0 publications

Idiopathic Myointimal Hyperplasia of the Mesenteric Veins: A Case Report and Scoping Review of Previously Reported Cases From Clinical Features to Treatment

Idiopathic Myointimal Hyperplasia of the Mesenteric Veins: A Case Report and Scoping Review of Previously Reported Cases From Clinical Features to Treatment

Capturing the often-elusive diagnosis of idiopathic myointimal hyperplasia of mesenteric veins

A case of idiopathic myointimal hyperplasia of the mesenteric veins presenting with small bowel obstruction

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