An adolescent boy with comorbid anorexia nervosa and hashimoto thyroiditis

Low triiodothyronine syndrome is a physiological adaptation encountered in anorexia nervosa (an) and generally improves with sufficient weight gain. however,when a primary thyroid pathology accompanies an,both the evaluation of thyroid hormone levels and the management of the co-morbid disease become more challenging. hashimoto thyroiditis could complicate the management of an by causing hyper- or hypothyroidism. an could also negatively affect the treatment of hashimoto thyroiditis by altering body weight and metabolic rate,as well as by causing drug non-compliance. we present the case of a 15-year-old boy with comorbid an restrictive sub-type and hashimoto thyroiditis. in this case report,we aimed to draw attention to the challenges that could be encountered in the diagnosis,treatment,and follow-up of patients with an when accompanied by hashimoto thyroiditis. © 2016,journal of clinical research in pediatric endocrinology,published by galenos publishing.