Goitre related to hypermetabolism, (increased metabolism), excessive thyroid hormone, an increase in oxygen consumption, metabolic changes in protein metabolism, immunologic stimulation of diffuse goitre, and ocular changes (exophthalmos). Hypothyroid individuals may have weight gain despite poor appetite, cold intolerance, constipation and lethargy. However, these symptoms are often non-specific and make diagnosis difficult. A goitre may be classified either as nodular or diffuse. Nodular goitres are either of one nodule (uninodular) or of multiple nodules (multinodular). Worldwide, the most common cause for goitre is iodine deficiency, usually seen in countries that do not use iodized salt. Selenium deficiency is also considered a
Without a Trace two seasons. "Without a Trace" took place within Jerry Bruckheimer's "" universe. A crossover episode featured characters Gil Grissom from "CSI" and Jack Malone from "Without a Trace" working together to solve the same case. "Without a Trace" debuted as part of the CBS fall line-up in 2002, created by Hank Steinberg and produced by Jerry Bruckheimer. It was the first show to achieve strong ratings opposite longtime NBC hit medical drama "ER"—which, like "Without a Trace", is produced by Warner Bros. Television. The first two showrunners were Steinberg and Ed Redlich. Between seasons two and three, Redlich moved away