| Cushing's syndrome | <endocrinology, syndrome> An increased concentration of glucocorticoid hormone (ACTH) in the bloodstream that is being produced by an adrenal gland tumour (adenoma). Ectopic Cushing syndrome refers to the production of ACTH in a location other than the pituitary gland or adrenal gland. Examples of ectopic sites include thymoma, medullary carcinoma of the thyroid, pheochromocytoma, islet cell tumours of the pancreas and oat cell carcinoma of the lung. Symptoms include weight gain, central obesity, moon face, weakness, fatigue, backache, headache, increased thirst, increased urination, impotence, mental status changes and muscle atrophy. Treatment varies with cause. If an ACTH secreting tumour is involved then it must be removed surgically. (27 Sep 1997) |
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| Cushing's syndrome medicamentosus | A variable number of the signs and symptoms of Cushing's syndrome; produced by the chronic administration of large doses of any steroid that is a potent glucocorticoid. (05 Mar 2000) |
| cushing syndrome | <radiology> Hyperplasia 70%, pituitary 90%, ectopic 10%, adrenal adenoma 20%, carcinoma 10% Findings: retarded bone maturation, osteoporosis (most often axial), excess callus formation, stippled calvarium, demineralised dorsum sellae, CT: normal-sized adrenals in 1/3 of adrenal hyperplasia (12 Dec 1998) |
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| syndrome, cushing's | The constellation of symptoms and signs caused by an excess of cortisol hormone. Cushing syndrome is an extremely complex hormonal condition that involves many areas of the body. Common symptoms are thinning of the skin, weakness, weight gain, bruising, hypertension, diabetes, thin weak bones (osteoporosis), facial puffiness, and in women cessation of periods. Ironically, one of the commonest causes of cushing's syndrome is the administration of cortisol-like medications for the treatment of diverse diseases. All other cases of cushing's syndrome are due to excess production of cortisol by the adrenal gland including 1) an abnormal growth of the pituitary gland, which stimulates the adrenal gland, 2) a benign or malignant growth within the adrenal gland itself, which produces cortisol and 3) production within another part of the body (ectopic production) of a hormone that directly or indirectly stimulates the adrenal gland to make cortisol. Neurosurgeon harvey cushing (1869-1939) described hyperadrenocorticism (excessive production of cortisol by the adrenal gland) due quite specifically to an acth-secreting pituitary adenoma, a benign pituitary tumour that puts out acth (adrenocorticotropic hormone) which, in turn, drives (or overdrives) the adrenal gland to overproduce cortisol. (12 Dec 1998) |
| cushing disease | <radiology> CNS disease resulting in Cushing syndrome, pituitary: corticotrophic adenoma, hypothalamic abnormality (12 Dec 1998) |
| Cushing effect | A rise in systemic blood pressure when the intracranial pressure acutely increases, usually in excess of 50% of the systolic arterial pressure. Synonym: Cushing effect, Cushing response. (05 Mar 2000) |
| Cushing, Harvey | <person> This leader of neurosurgery was born in Cleveland, Ohio, graduated from Harvard in 1895, remained at Massachusetts General Hospital for one year, spent 15 years at Johns Hopkins, returned to Harvard as Professor of Surgery, and retired in new Haven where he continued actively until his death. Cushing's accomplishments in neurosurgery were amazing. In 1906, he demonstrated the relationship between pituitary tumours and sexual infantilism. In 1917, he published a classic, "The Pituitary Body and Its Disorders." Cushing wrote many charming essays, some of which were published as a collection under the title, "Consecratio Medici" in 1928. He was an earnest collector of books and bequeathed his valuable collection to the Yale Library. Among his many publications were a Biography of 0sler, and a Biography of Andreas Vesalius. Lived: 1869-1939. (15 Nov 1997) |
| Cushing, Hayward | <person> U.S. Surgeon, 1854-1934. See: Cushing's suture. (05 Mar 2000) |
| Cushing phenomenon | A rise in systemic blood pressure when the intracranial pressure acutely increases, usually in excess of 50% of the systolic arterial pressure. Synonym: Cushing effect, Cushing response. (05 Mar 2000) |
| Cushing response | A rise in systemic blood pressure when the intracranial pressure acutely increases, usually in excess of 50% of the systolic arterial pressure. Synonym: Cushing effect, Cushing response. (05 Mar 2000) |
| Cushing's basophilism | <endocrinology, syndrome> An increased concentration of glucocorticoid hormone (ACTH) in the bloodstream that is being produced by an adrenal gland tumour (adenoma). Ectopic Cushing syndrome refers to the production of ACTH in a location other than the pituitary gland or adrenal gland. Examples of ectopic sites include thymoma, medullary carcinoma of the thyroid, pheochromocytoma, islet cell tumours of the pancreas and oat cell carcinoma of the lung. Symptoms include weight gain, central obesity, moon face, weakness, fatigue, backache, headache, increased thirst, increased urination, impotence, mental status changes and muscle atrophy. Treatment varies with cause. If an ACTH secreting tumour is involved then it must be removed surgically. (27 Sep 1997) |
| Cushing's disease | <disease> An increased concentration of glucocorticoid hormone in the bloodstream (produced by the adrenal gland) secondary to a pituitary tumour that is secreting the hormone adrenocorticotropic hormone (ACTH). ACTH serves to stimulate the adrenal gland to produce excess glucocorticoids. (27 Sep 1997) |
| Cushing's pituitary basophilism | <disease> An increased concentration of glucocorticoid hormone in the bloodstream (produced by the adrenal gland) secondary to a pituitary tumour that is secreting the hormone adrenocorticotropic hormone (ACTH). ACTH serves to stimulate the adrenal gland to produce excess glucocorticoids. (27 Sep 1997) |
| Cushing's suture | A running horizontal mattress suture used to approximate two adjacent surfaces. (05 Mar 2000) |
| Harvey Cushing | <person> This leader of neurosurgery was born in Cleveland, Ohio, graduated from Harvard in 1895, remained at Massachusetts General Hospital for one year, spent 15 years at Johns Hopkins, returned to Harvard as Professor of Surgery, and retired in new Haven where he continued actively until his death. Cushing's accomplishments in neurosurgery were amazing. In 1906, he demonstrated the relationship between pituitary tumours and sexual infantilism. In 1917, he published a classic, "The Pituitary Body and Its Disorders." Cushing wrote many charming essays, some of which were published as a collection under the title, "Consecratio Medici" in 1928. He was an earnest collector of books and bequeathed his valuable collection to the Yale Library. Among his many publications were a Biography of 0sler, and a Biography of Andreas Vesalius. Lived: 1869-1939. (15 Nov 1997) |
| Aarskog-Scott syndrome | A syndrome of ocular hypertelorism, anteverted nostrils, broad upper lip, saddle-bag scrotum, and laxity of ligaments resulting in genu recurvatum, flat feet, and hyperextensible fingers; X-linked and autosomal dominant forms. Synonym: Aarskog-Scott syndrome. (05 Mar 2000) |
| Aarskog syndrome | <syndrome> Grier et al. (1983) reported father and 2 sons with typical Aarskog syndrome, including short stature, hypertelorism, and shawl scrotum. They tabulated the findings in 82 previous cases. X-linked recessive inheritance has been repeatedly suggested. The family reported by Welch (1974) had affected males in 3 consecutive generations. Thus, there is either genetic heterogeneity or this is an autosomal dominant with strong sex-influence and possibly ascertainment bias resulting from use of the shawl scrotum as a main criterion. Stretchable skin was present in the cases of Grier et al. (1983). Teebi et al. (1993) reported the case of an affected mother and 4 sons (including a pair of monozygotic twins) by 2 different husbands. They suggested that the manifestations were as severe in the mother as in the sons and that this suggested autosomal dominant inheritance. Actually, the mother seemed less severely affected, compatible with X-linked inheritance. Clinical signs: Mild to moderate short stature,normocephaly, Widow's peak hair, maxillary hypoplasia, broad nasal bridge, anteverted nostrils, long philtrum, broad upper lip, curved linear dimple below the lower lip, hypertelorism, ptosis, down-slanted palpebral fissures, ophthalmoplegia, strabismus, hyperopic astigmatism, large cornea, floppy ears, lop-ears,cleft lip/palate, shawl scrotum, saddle-bag scrotum, cryptorchidism, brachydactyly, digital contractures, clinodactyly, mild syndactyly, transverse palmar crease, lymphoedema of the feet, ligamentous laxity, osteochondritis dissecans, proximal finger joint hyperextensibility, flexed distal finger joints, genu recurvatum, flat feet, stretchable skin, cervical spine hypermobility, odontoid anomaly, macrocytic anaemia, hemochromatosis, hepatomegaly, portal cirrhosis, imperforate anus, rectoperineal fistula, interstitial pulmonary disease, sternal deformity. Inheritance: Sex-influenced autosomal dominant form, also X-linked form. (05 Aug 1998) |