Figure 1
From: Hyperthyroidism from autoimmune thyroiditis in a man with type 1 diabetes mellitus: a case report
Thyroid-stimulating hormone (TSH) and free thyroxine in a man with autoimmune thyroiditis. Initially, our patient presented with hyperthyroidism (elevated thyroxine and suppressed TSH levels), which evolved to hypothyroidism (elevated TSH and low thyroxine levels) at month two. His thyroid indices normalized with thyroid hormone replacement therapy (indicated by arrow) four months after his initial presentation. The dotted lines represent the upper and lower limits of the normal ranges for TSH and free thyroxine.