Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA.
Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA.
Vet Radiol Ultrasound. 2022 Nov;63(6):711-718. doi: 10.1111/vru.13123. Epub 2022 Jun 8.
Postcontrast computed tomographic (CT) characteristics of gastrointestinal (GI) wall edema in humans have been described as GI wall thickening with a thickened submucosal layer and thin enhanced inner and outer layers. Published studies describing CT features of gastric wall edema in dogs are currently lacking. The aim of this retrospective, case series was to describe CT features of gastric wall edema in a group of dogs. Medical records were searched for dogs with postcontrast abdominal CT scans and a diagnosis of gastric wall edema based on histopathology (group I) or CT characteristics consistent with those reported in humans (group II). Clinical diagnosis, mean serum albumin concentration, and histopathological diagnosis were recorded. The following CT characteristics were recorded: numbers of wall layers, attenuation and contrast enhancement, presence of blood vessels, locations, distribution, and thickness. Twelve dogs (3 in group I and 9 in group II) were included. The most common clinical finding was hypoalbuminemia. In group I, a well-defined three-layer appearance with a non-enhancing fluid-attenuating middle layer was observed in three dogs and thin blood vessels in the middle layer in two dogs. In group II, nine dogs had a three-layer appearance with a non-enhancing fluid-attenuating middle layer. Locations of gastric wall thickening were diffuse in two, focal concentric in six, and focal asymmetric in four dogs. Findings supported including gastric wall edema as a differential diagnosis for dogs with hypoalbuminemia and CT characteristics of a three-layer appearance in the gastric wall, with a non-enhancing fluid-attenuating middle layer and thin blood vessels.
人类胃肠道（GI）壁水肿的增强 CT 特征描述为 GI 壁增厚，伴有增厚的黏膜下层和薄的增强内层和外层。目前缺乏描述犬胃壁水肿 CT 特征的已发表研究。本回顾性病例系列研究旨在描述一组犬胃壁水肿的 CT 特征。检索了接受增强腹部 CT 扫描且根据组织病理学（I 组）或与人类报告的 CT 特征一致（II 组）诊断为胃壁水肿的犬的病历。记录了临床诊断、平均血清白蛋白浓度和组织病理学诊断。记录了以下 CT 特征：壁层数、衰减和对比增强、血管存在情况、位置、分布和厚度。共纳入 12 只犬（I 组 3 只，II 组 9 只）。最常见的临床发现是低白蛋白血症。在 I 组中，3 只犬观察到具有明确的三层外观，中间层为无增强的液体衰减，2 只犬中间层有薄的血管。在 II 组中，9 只犬具有三层外观，中间层为无增强的液体衰减。胃壁增厚的位置在 2 只犬中为弥漫性，在 6 只犬中为局灶性同心，在 4 只犬中为局灶性不对称。这些发现支持将胃壁水肿作为低白蛋白血症和胃壁具有三层外观、中间层无增强液体衰减和薄血管的犬的鉴别诊断之一。
