Two rare but important causes of inappropriate secretion of TSH are TSHomas and
resistance to thyroid hormone. 1 Distinguishing between the 2 can pose diagnostic and …

Purpose: Normal or elevated thyrotropin (TSH) levels in the presence of elevated thyroxine
is defined as syndrome of inappropriate secretion of TSH. The two main clinical conditions …

The elevation of thyroid hormone with a normal or elevated thyroid-stimulation hormone
(TSH) occurs uncommonly. This set a diagnosis challenge between TSH-secreting pituitary …

Background: Thyroid‐stimulating hormone (TSH)‐secreting pituitary adenomas (TSHoma)
are a rare cause of thyrotoxicosis and need to be distinguished from the syndrome of …

Three phenotypically normal family members were discovered to have elevated thyroid
function (T 4, free T 4, T 3, 123 I uptake), but were clinically euthyroid. Further evaluation of …

Resistance to thyroid hormone encompasses a clinically heterogeneous group of conditions
characterized by reduced responses of target tissues to a supply of thyroid hormone that …

Resistance to thyroid hormone (RTH) was first described in 1967 [1], and the first mutations
in the THRB gene were identified in 1989 [2, 3], only 3 years after the cloning of the THR …

Forty years have elapsed since the first description of a syndrome of resistance in the
hypothalamic–pituitary–thyroid axis, ie, resistance to thyroid hormone action. In the last two …

A comment on this article appears in" Inappropriate thyroid-stimulating hormone secretion."
Intern Med J. 2002 Mar; 32 (3): 120-1. A comment on this article appears in" Elevated thyroid …

Thyroid hormone resistance syndrome (RTH) is a rare disorder characterized by elevated
levels of circulating free thyroid hormones, inappropriate TSH secretion, and reduced …