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Hypertensive Heart Disease – Definition Hypertensive heart disease is characterized by a firmly continuous high blood pressure in which the force of blood against the artery walls is too high. Continuous hypertension causes structural and functional abnormalities of the heart. This can also cause damage to the ventricular and arterial …

Herpetic Whitlow – Overview Herpetic whitlow is a painful hand infection or lesion that typically involves one or more fingers. It is usually caused by herpes simplex virus 1, but occasionally it is caused by the herpes simplex virus 2. It usually afflicts health care workers, such as dentists. The …

Description – Hypersensitivity Pneumonitis Hypersensitivity pneumonitis (HP), also called extrinsic allergic alveolitis, is a respiratory syndrome involving the lung parenchyma and specifically the alveoli, terminal bronchioli, and alveolar interstitium, due to a delayed allergic reaction. Such reaction is secondary to a repeated and prolonged inhalation of different types of organic …

Hematuria – Overview Blood in urine – known medically as hematuria – is usually not a reason for major alarm. Because blood in urine can be a sign of a serious medical condition, however, it shouldn’t be ignored. All cases of hematuria should be evaluated by a doctor who can …

Overview A hernia occurs when an organ pushes through an opening in the muscle or tissue that holds it in place. For example, the intestines may break through a weakened area in the abdominal wall. Hernias are most common in the abdomen, but they can also appear in the upper …

Definition Hyperhidrosis, which is sweating in excess of that required for normal thermoregulation, is a condition that usually begins in either childhood or adolescence. Although any site on the body can be affected by hyperhidrosis, the sites most commonly affected are the palms, soles, and axillae. See the image below. …

Definition Heller’s Syndrome is a rare developmental disorder characterized by late onset of developmental delays in language, social function, and motor skills. CDD has some similarity to autism and is sometimes considered a low-functioning form of it. CDD is similar to dementia skills already learned and acquired suddenly disappear and …

Definition Hyperhidrosis is a medical condition where an excessive amount of sweat is produced by the sweat glands. The amount of sweat produced is out of proportion to the amount required to cool the body. This does not mean that sweating a lot after running on a hot summer’s day …