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Ann Pediatr Endocrinol Metab > Volume 3(2); 1998 > Article
A Case of Sublingual Thyroid Combined with Pituitary Hyperplasia.
Hyun Mi Lee, Choong Ho Shin, Dong Woo Son, Kyu Young Kim, Do Hyun Kim, Kyung Hee Park, Yun Sun Choi
Abstract
We present a 23months old male patient of pituitary hyperplasia due to sublingual thyroid induced primary hypothyroidism with subsequent return to normal size after thyroxine therapy. Before the levothyroxine treatment, MRI revealed enlargement of the pituitary gland with suprasellar extension. During treatment with levothyroxine, serum T3, T4, and TSH were normal and growth retardation was improved. One year later, repeated MRI showed a decrease in pituitary mass size, with no suprasellar extension. The reversible pituitary mass resolved after treatment with levothyroxine must be considered in patients with pituitary and suprasellar masses.
Keywords: Primary hypothyroidism;Pituitary hyperplasia;Ecpotic thyroid;MRI


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