rash

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Related to macular rash: Maculopapular rash

rash,

nonspecific term for an eruption of the skinskin,
the flexible tissue (integument) enclosing the body of vertebrate animals. In humans and other mammals, the skin operates a complex organ of numerous structures (sometimes called the integumentary system) serving vital protective and metabolic functions.
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. It may result from skin allergy, skin irritation, or skin disease, or it may be a symptom of a systemic disease like measles, smallpox, or scarlet fever. A rash may appear as discolored spots or a general redness, or as blisters or pustules, either flat or raised above the surface of the skin. The rash may cause skin irritation—itching, tingling, burning, or pain—or it may not cause any discomfort. The appearance and distribution of a rash are often important factors for consideration in diagnosing a particular disease.

Rash

 

an eruption on the skin or mucous membrane of man, the cause of which can be either external and internal. Rashes accompany skin and other types of diseases. The external causes can be physical or chemical, while internal causes include diseases of the nervous and hemopoietic systems, metabolic disorders and functional disorders of certain organs (digestion, endocrine glands), infectious diseases (measles, scarlet fever), and allergic reactions (urticaria). Rashes may be primary or secondary. Primary rashes appear on previously normal skin or mucous membrane (spots, wheals, vesicles, pustules, tubercles). Secondary rashes appear as a further development of primary elements (pigmentation, scales, crusts, abrasions, ulcers, fissures, scars). The location, number, combination, color, shape, depth, and duration of the eruptions are helpful in diagnosing the disease.

rash

[rash]
(medicine)
A lay term for nearly any skin eruption, but more commonly for acute inflammatory dermatoses.
(mining engineering)
Very impure coal, so mixed with waste material as to be unsalable.

rash

Pathol any skin eruption
References in periodicals archive ?
The patient had not had a fever since May 20, 2009 (1 day after initiation of doxycycline therapy), but still had macular rash and joint and muscle pain.
A transient macular rash is often seen on day 1 to day 2 of illness.
Of those persons in whom symptoms develop, most have self-limited West Nile fever (WNF), characterized by the acute onset of fever, headache, fatigue, malaise, muscle pain, and weakness; gastrointestinal symptoms and a transient macular rash on the trunk and extremities are sometimes reported (15,16).
On the second day, a diffuse cutaneous macular rash appeared.
A pale macular rash was still present on the trunk.
Seven days later, when she was experiencing an intense headache and noticed a macular rash on her trunk, she sought treatment from a local doctor (day [0.
The next day, the patient returned to the hospital after the onset of vomiting and a nonpuritic, blotchy, macular rash on bet arms and abdomen.