Hiatal hernia with focal megaoesophagus was diagnosed in a 10-year-old Friesian stallion presenting to the referral hospital for further investigation of recurrent oesophageal obstruction. Oesophageal endoscopy revealed dilation of the distal oesophagus with alterations in the mucosa characteristic of gastric mucosa in the distal oesophagus. In addition, a moderate amount of feed material was identified in the distal oesophagus. Positive contrast radiography showed that approximately half of the stomach was herniated cranially through the diaphragm. Management of the disease included recommendations to elevate the patient’s torso during feeding and provide mash-only feeds. Provided that successful control of the megaoesophagus could be achieved, surgical repair of the hiatal hernia may be an option for the future. This is the first report of hiatal herniation in horses. We report the successful conservative management of a stallion with both megaoesophagus and hiatal herniation through elevated feedings and selective exercise management.

中文翻译：

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弗里斯兰种马有局灶性巨食管裂孔疝

一头 10 岁 Friesian 种马被诊断出患有局灶性巨食管裂孔疝，转诊医院进一步检查复发性食管梗阻。食管内窥镜检查显示食管远端扩张，食管远端胃黏膜特征性改变。此外，在远端食管中发现了适量的饲料。正对比射线照相显示大约一半的胃通过隔膜向颅侧突出。该疾病的管理包括建议在喂食期间抬高患者的躯干并提供纯饲料。如果能够成功控制巨食管，手术修复食管裂孔疝可能是未来的一种选择。这是马食管裂孔疝的首次报道。我们报告了通过增加喂食和选择性运动管理对患有巨食管和食管裂孔疝的种马进行成功的保守管理。