| congenital hypothyroidism | Lack of thyroid secretion. See: infantile hypothyroidism. (05 Mar 2000) |
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| secondary hypothyroidism | Hypothyroidism that arises as a consequence of inadequate thyrotropin secretion by the anterior pituitary gland. (05 Mar 2000) |
| hypothyroidism | <endocrinology> A deficiency of thyroid activity. In adults, it is most common in women and is characterised by decrease in basal metabolic rate, tiredness and lethargy, sensitivity to cold and menstrual disturbances. If untreated, it progresses to full blown myxoedema. In infants, severe hypothyroidism leads to cretinism. In juveniles, the manifestations are intermediate, with less severe mental and developmental retardation and only mild symptoms of the adult form. When due to pituitary deficiency of thyrotropin secretion it is called secondary hypothyroidism. (11 Jan 1998) |
| infantile hypothyroidism | <paediatrics> Stunted body growth and mental development appearing in the first years of life resulting the inappropriate development of the thymus gland or inadequate maternal intake of iodine during gestation. (27 Sep 1997) |
| subclinical | Without clinical manifestations, said of the early stage of an infection or other disease or abnormality before symptoms and signs become apparent or detectable by clinical examination or laboratory tests or of a very mild form of an infection or other disease or abnormality. (18 Nov 1997) |
| subclinical diabetes | A form of diabetes mellitus that is clinically evident only under certain circumstances, such as pregnancy or extreme stress; persons so afflicted may, in time, manifest more severe forms of the disease. (05 Mar 2000) |
| subclinical disease | An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable clinical findings. As distinct from a clinical disease which has clinical signs and symptoms that can be recognised. Many diseases are subclinical before surfacing as clinical diseases. For examples: diabetes, hypothyroidism, rheumatoid arthritis. (12 Dec 1998) |
| subclinical infection | <epidemiology> An infection in which symptoms are sufficiently mild or inapparent to escape diagnosis other than by positive confirmation of the ability to transmit the infection or serologically. (05 Dec 1998) |
| subclinical seizure | A seizure detected by EEG, which has no clinical correlate, i.e., an EEG seizure alone or an electrical seizure alone. Synonym: electrographic seizure. (05 Mar 2000) |
| disease, subclinical | An illness that stays below the surface of clinical detection. A subclinical disease has no recognizable clinical findings. As distinct from a clinical disease which has clinical signs and symptoms that can be recognised. Many diseases are subclinical before surfacing as clinical diseases. For examples: diabetes, hypothyroidism, rheumatoid arthritis. (12 Dec 1998) |