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. 2020 Apr 18;4(4):773-774.
doi: 10.1002/jgh3.12343. eCollection 2020 Aug.

Arteriovenous malformation in pancreas mimicking hypervascular tumor

Keisuke Ishigami  1 , Tomoya Sakuma  2 , Masato Saito  3 , Yujiro Kawakami  1 , Yoshiharu Masaki  1 , Ayako Murota  1 , Masayo Motoya  1 , Yasutoshi Kimura  4 , Hiroshi Nakase  1
Affiliations

Arteriovenous malformation in pancreas mimicking hypervascular tumor

Keisuke Ishigami et al. JGH Open. .

Abstract

Arteriovenous malformation (AVM) is defined as a disease that causes blood flow abnormality due to anastomoses of the arteries and veins. AVM can occur in any gastrointestinal tract, but pancreatic AVM (P-AVM) is very rare. Previous reports demonstrated that contrast-enhanced CT (CECT) typically showed abnormal vascular network in pancreas. We present a 58-year old man with a history of acute pancreatitis. He was referred to our hospital for examination of pancreatic mass. CECT showed a round-shaped hypervascular lesion with a diameter of 8 mm in the head of the pancreas. Selective angiography showed vascular network and early visualization of superior mesenteric vein. We finally diagnosed this case as P-AVM. He underwent duodenum preserving pancreatic head resection. Histological findings confirmed the preoperative diagnosis of P-AVM.

Keywords: arteriovenous malformation; pancreas; pseudo tumor.

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Figures

Figure 1
Figure 1
(a) Contrast‐enhanced CT revealed a hypervascular tumorous lesion in the head of the pancreas (arrow). (b) Selective angiography showed abnormal vascular network and early visualization of superior mesenteric vein. (c) Elastica van Gieson (EVG) staining (×40) showed increased abnormal blood vessels. (d) EVG staining (×200) focused on an anastomosis of a vein and a small artery with inappropriate tunica media.
See this image and copyright information in PMC

References

    1. Halpern M, Turner AF, Citron BP. Hereditary hemorrhagic telangiectasia. An angiographic study of abdominal visceral angiodysplasias associated with gastrointestinal hemorrhage. Radiology. 1968; 90: 1143–9. - PubMed
    1. Meyer CT, Troncale FJ, Galloway S, Sheahan DG. Arteriovenous malformations of the bowel: an analysis of 22 cases and a review of the literature. Medicine. 1981; 60: 36–48. - PubMed
    1. Chou SC, Shyr YM, Wang SE. Pancreatic arteriovenous malformation. J. Gastrointest. Surg. 2013; 17: 1240–6. - PubMed
    1. Seike T, Komura T, Shimizu Y et al A case of chronic pancreatitis exacerbation associated with pancreatic arteriovenous malformation: a case report and literature review. Clin. J. Gastroenterol. 2019; 12: 135–41. - PubMed
    1. Cho SK, Do YS, Shin SW et al Arteriovenous malformations of the body and extremities: analysis of therapeutic outcomes and approaches according to a modified angiographic classification. J. Endovasc. Ther. 2006; 13: 527–38. - PubMed

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