Megaesophagus in Littermates Dogo Argentino Accompanied With Hypothyroidism.
Megaesophagus is a disorder in which the esophagus becomes dilated, on account of a decrease in the muscle tone. This condition may arise as a secondary consequence to many ailments such as hypothyroidism or other diseases of unknown etiology.
Hypothyroidism is one of the most common canine endocrinopathy with bilaterally symmetrical truncal alopecia. Gastrointestinal symptoms are uncommon in hypothyroidism (hormonal diseases), some dogs with megaesophagus may have experienced hypothyroidism, which has been attributed to hypothyroidism-induced myopathy or neuropathy; treatment of these dogs with thyroxine may have improved their esophageal functions. The present work aims to report about megaesophagus in littermates Dogo Argentino accompanied with hypothyroidism for scientific community and veterinary small animal’s practioners.
The bilateral alopecia with non-inflammatory features is quietly indicative of endocrine involvement which described as endocrine alopecia; this is similar to the findings of Nelson and Couto. In spite of the clinical presentation of canine hypothyroidism may be vague.
The usage of levothyroxine for treating hypothyroidism in dogs with megaesophagus is controversial. Levothyroxine aided to alleviate megaesophagus after 3-months treatment, but other reports showed no improvement. Despite that, the presented cases with hypothyroidism and megaesophagus are managed by oral adminstration of levothyroxine.
The authors herein would like to report megaesophagus in dogs accompanied with hypothyroidism, also to state the recommendations of their medicinal management aiming to introduce this for scientific community and veterinarians for solving the problem of such cases.
Vet Med Open J. 2017; 2(3): 138-141. doi: 10.17140/VMOJ-2-124