Terminology Service < Semantic Lookup Platform

All individuals in MESHD

Label	Id	Description
Hyperpituitarism	D006964	[Disease of the glandular, anterior portion of the pituitary (PITUITARY GLAND, ANTERIOR) resulting in hypersecretion of ADENOHYPOPHYSEAL HORMONES such as GROWTH HORMONE; PROLACTIN; THYROTROPIN; LUTEINIZING HORMONE; FOLLICLE STIMULATING HORMONE ; and ADRENOCORTICOTROPIC HORMONE. Hyperpituitarism usually is caused by a functional ADENOMA.]
Hyperplasia	D006965	[An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.]
Hyperprolactinemia	D006966	[Increased levels of PROLACTIN in the BLOOD, which may be associated with AMENORRHEA and GALACTORRHEA. Relatively common etiologies include PROLACTINOMA, medication effect, KIDNEY FAILURE, granulomatous diseases of the PITUITARY GLAND, and disorders which interfere with the hypothalamic inhibition of prolactin release. Ectopic (non-pituitary) production of prolactin may also occur. (From Joynt, Clinical Neurology, 1992, Ch36, pp77-8)]
Hypersensitivity	D006967	[Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.]
Hypersensitivity, Delayed	D006968	[An increased reactivity to specific antigens mediated not by antibodies but by cells.]
Hypersensitivity, Immediate	D006969	[Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability.]
Hypersomnolence, Idiopathic	D020177	[A sleep disorder of central nervous system origin characterized by prolonged nocturnal sleep and periods of daytime drowsiness. Affected individuals experience difficulty with awakening in the morning and may have associated sleep drunkenness, automatic behaviors, and memory disturbances. This condition differs from narcolepsy in that daytime sleep periods are longer, there is no association with CATAPLEXY, and the multiple sleep latency onset test does not record sleep-onset rapid eye movement sleep. (From Chokroverty, Sleep Disorders Medicine, 1994, pp319-20; Psychiatry Clin Neurosci 1998 Apr:52(2):125-129)]
Hypersplenism	D006971	[Condition characterized by splenomegaly, some reduction in the number of circulating blood cells in the presence of a normal or hyperactive bone marrow, and the potential for reversal by splenectomy.]
Hypertelorism	D006972	[Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.]
Hypertension	D006973	[Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.]
Hypertension, Malignant	D006974	[A condition of markedly elevated BLOOD PRESSURE with DIASTOLIC PRESSURE usually greater than 120 mm Hg. Malignant hypertension is characterized by widespread vascular damage, PAPILLEDEMA, retinopathy, HYPERTENSIVE ENCEPHALOPATHY, and renal dysfunction.]
Hypertension, Portal	D006975	[Liver cirrhosis with intrahepatic portal obstruction, HYPERTENSION, and patent UMBILICAL VEINS., Abnormal increase of resistance to blood flow within the hepatic PORTAL SYSTEM, frequently seen in LIVER CIRRHOSIS and conditions with obstruction of the PORTAL VEIN.]
Hypertension, Pregnancy-Induced	D046110	[A condition in pregnant women with elevated systolic (>140 mm Hg) and diastolic (>90 mm Hg) blood pressure on at least two occasions 6 h apart. HYPERTENSION complicates 8-10% of all pregnancies, generally after 20 weeks of gestation. Gestational hypertension can be divided into several broad categories according to the complexity and associated symptoms, such as EDEMA; PROTEINURIA; SEIZURES; abnormalities in BLOOD COAGULATION and liver functions., HYPERTENSION that develops as a result of PREGNANCY and regresses post partum. It is hypertension without PROTEINURIA or pathological EDEMA.]
Hypertension, Pulmonary	D006976	[Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or LUNG DISEASES.]
Hypertension, Renal	D006977	[Persistent high BLOOD PRESSURE due to KIDNEY DISEASES, such as those involving the renal parenchyma, the renal vasculature, or tumors that secrete RENIN.]
Hypertension, Renovascular	D006978	[Hypertension due to RENAL ARTERY OBSTRUCTION or compression., HYPERTENSION due to renal ISCHEMIA. In 1934, Harry Goldblatt described that hypertension can be produced experimentally by using a clamp to obstruct blood flow to one kidney, the Goldblatt phenomenon.]
Hypertensive Encephalopathy	D020343	[Brain dysfunction or damage resulting from sustained MALIGNANT HYPERTENSION. When BLOOD PRESSURE exceeds the limits of cerebral autoregulation, cerebral blood flow is impaired (BRAIN ISCHEMIA). Clinical manifestations include HEADACHE; NAUSEA; VOMITING; SEIZURES; altered mental status (in some cases progressing to COMA); PAPILLEDEMA; and RETINAL HEMORRHAGE.]
Hypertensive Retinopathy	D058437	[Degenerative changes to the RETINA due to HYPERTENSION.]
Hyperthyroidism	D006980	[Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE.]
Hyperthyroxinemia	D006981	[Abnormally elevated THYROXINE level in the BLOOD.]