| pyloric insufficiency | Patulousness of the pyloric outlet of the stomach, allowing regurgitation of duodenal contents into the stomach. (05 Mar 2000) |
|---|---|
| divergence insufficiency | That condition in which an exophoria or exotropia is more marked for near vision than for far vision. (05 Mar 2000) |
| divergence insufficiency exotropia | Exotropia in which the strabismus is notably greater for near vision than for far vision. (05 Mar 2000) |
| insufficiency | The condition of being insufficient or inadequate to the performance of the allotted duty. Origin: L. Insufficientia, from sufficiens = sufficient (18 Nov 1997) |
| tricuspid insufficiency | See: valvular insufficiency. (05 Mar 2000) |
| tricuspid valve insufficiency | Backflow of blood from the right ventricle into the right atrium, owing to imperfect functioning of the tricuspid valve. (12 Dec 1998) |
| exocrine pancreatic insufficiency | Lack of exocrine secretions of pancreas, due to destruction of acini, usually by chronic pancreatitis; lack of digestive enzymes from pancreas results in diarrhoea, usually fatty (steatorrhoea) because of lack of pancreatic enzymes. (05 Mar 2000) |
| uterine insufficiency | Atony of the uterine musculature. (05 Mar 2000) |
| latent adrenocortical insufficiency | Adrenocortical insufficiency not clinically evident but which can become severe if a sudden stress, such as an intercurrent acute illness, develops. (05 Mar 2000) |
| accessory thyroid | An isolated mass, or one of several such masses, of thyroid tissue, sometimes present in the side of the neck, or just above the hyoid bone (suprahyoid accessory thyroid gland), or even as low as the arch of the aorta. Synonym: glandula thyroidea accessoria, accessory thyroid, prehyoid gland, suprahyoid gland, thyroidea accessoria, thyroidea ima, Wolfler's gland. (05 Mar 2000) |
| accessory thyroid gland | An isolated mass, or one of several such masses, of thyroid tissue, sometimes present in the side of the neck, or just above the hyoid bone (suprahyoid accessory thyroid gland), or even as low as the arch of the aorta. Synonym: glandula thyroidea accessoria, accessory thyroid, prehyoid gland, suprahyoid gland, thyroidea accessoria, thyroidea ima, Wolfler's gland. (05 Mar 2000) |
| anaplastic carcinoma of the thyroid | <oncology, tumour> An aggressive form and rare form of thyroid cancer that is one of the most rapidly growing and invasive types of thyroid cancer. It commonly occurs in people over 60 years of age and may cause obstruction of the trachea. The cause is unknown but exposure to radiation may be a factor. Thyroid function tests are usually normal. Hoarse voice, cough and coughing up blood are common symptoms. Examination may reveal nodules in the thyroid gland. Diagnosis is made via biopsy. Treatment is surgical with or without radiation therapy. (27 Sep 1997) |
| cancer, thyroid | Cancer of the gland in front of the neck that normally produces thyroid hormone which is important to the normal regulation of the metabolism of the body. There are four major types of cancer of the thyroid gland. Persons who received radiation to the head or neck in childhood should be examined by a doctor every 1 to 2 years. The most common symptom of thyroid cancer is a lump, or nodule, that can be felt in the neck. The only certain way to tell whether a thyroid lump is cancer is by examining the thyroid tissue obtained using a needle or surgery for biopsy. (12 Dec 1998) |
| receptors, thyroid hormone | Proteins, usually found in the nucleus, that specifically bind thyroid hormones and regulate DNA transcription. These proteins, termed c-erba, are activated by hormones and cause differentiation of erythroid progenitor cells which irreversibly lose proliferative potential. Thus c-erba proteins act as growth suppressors. The c-erba proteins are encoded by at least two genes, c-erba alpha and c-erba beta. Each of these has two isoforms. Mutations in the ligand-binding domain of the beta form causes thyroid hormone resistance syndrome. (12 Dec 1998) |
| giant cell carcinoma of thyroid gland | A rapidly progressive undifferentiated carcinoma observed in the thyroid gland, characterised by numerous, unusually large, anaplastic cells derived from glandular epithelium of the thyroid gland. (05 Mar 2000) |