Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «H»:
Hereditary amyotrophic lateral sclerosis
Hereditary amyotrophic lateral sclerosis: See: Familial ALS....
Hereditary angioedema: A genetic form of angioedema.
(Angioedema is also referred to as Quinke's disease.) Persons with it are born
lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents
activation of a cascade of proteins leading to the swelling of angioedema. Patients c...
Hereditary angioneurotic edema
Hereditary angioneurotic edema: A genetic form of
angioedema. (Angioedema is also referred to as Quinke's disease.) Persons with it are
born lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents
activation of a cascade of proteins leading to the swelling of angioedema. P...
Hereditary arthro-ophthalmopathy: See: Stickler syndrome....
Hereditary arthroophthalmopathy: See: Stickler syndrome....
Hereditary atransferrinemia: A genetic disorder in which there is absence of transferrin, a plasma protein that transports iron through the blood.
Atransferrinemia is characterized by anemia and hemosiderosis (iron deposition) in the heart and liver. The iron damage to the heart can lead to heart f...
Hereditary essential tremor
Hereditary essential tremor: See: Essential tremor....
Hereditary hemorrhagic telangiectasia
Hereditary hemorrhagic telangiectasia: Abbreviated HHT. A genetic disease characterized by the presence of arteriovenous malformations (AVMs) which involve direct connections between arteries and veins without the usual intervening capillaries. These AVMs can vary in size from a pinhead to a pea. T...
Hereditary kidney cancer
Hereditary kidney cancer: Kidney cancer due to a gene than can be transmitted from parent to child. The vast majority of kidney cancer cases are not hereditary, but a small proportion of renal cell cancers are caused by hereditary syndromes.
Among these syndromes are:
von Hippel-Lindau syndrome
Hereditary mixed polyposis syndrome
Hereditary mixed polyposis syndrome: (HMPS) A cancer family syndrome characterized by the development of a variety of different types of polyps in the colon, including atypical juvenile polyps and adenomas of the colon, and by the development of colorectal carcinoma (cancer of colon and rectum). H...
Hereditary multi-infarct dementia
Hereditary multi-infarct dementia: See CADASIL....
Hereditary mutation: A
heritable change in the
DNA of a gene or
chromosome in a cell destined to become an
egg or a
sperm or the
zygote (the conceptus) at the single-cell stage. When transmitted to a child, an hereditary mutation is incorporated in every cell of their body.
Hereditary nonpolyposis colon cancer
Hereditary nonpolyposis colon cancer: (HNPCC)
An hereditary cancer syndrome which carries a very high risk of colon cancer and an above-normal risk of other cancers (uterus, ovary, stomach, small intestine, biliary system, urinary tract, brain, and skin).
The HNPCC syndrome is due to mutation in a ...
Hereditary nonpolyposis colorectal cancer
Hereditary nonpolyposis colorectal cancer: See: Hereditary nonpolyposis colon cancer....
Hereditary progressive arthro-ophthalmopathy
Hereditary progressive arthro-ophthalmopathy: See: Stickler syndrome....