read more or allergic contact dermatitis Allergic contact dermatitis (ACD) Contact dermatitis is inflammation of the skin caused by direct contact with irritants (irritant contact dermatitis) or allergens (allergic contact dermatitis). These may be caused by burns, bites, irritant contact dermatitis Irritant contact dermatitis (ICD) Contact dermatitis is inflammation of the skin caused by direct contact with irritants (irritant contact dermatitis) or allergens (allergic contact dermatitis). The term maculopapular is often loosely and improperly used to describe many red rashes because this term is nonspecific and easily misused, it should be avoided.īullae are clear fluid-filled blisters > 10 mm in diameter. The incidence is highest among outdoor workers, sportsmen, and sunbathers and is inversely related. read more, and skin cancers Overview of Skin Cancer Skin cancer is the most common type of cancer and commonly develops in sun-exposed areas of skin. read more, some lesions of acne Acne Vulgaris Acne vulgaris is the formation of comedones, papules, pustules, nodules, and/or cysts as a result of obstruction and inflammation of pilosebaceous units (hair follicles and their accompanying. (See also Overview of Effects of Sunlight.) Chronic exposure to sunlight ages the skin (photoaging, dermatoheliosis. read more, actinic keratoses Actinic keratoses Chronic affects of sunlight include photoaging, actinic keratoses, and skin cancer. The cause of seborrheic keratosis is unknown, but genetic mutations. read more, insect bites, seborrheic keratoses Seborrheic Keratoses Seborrheic keratoses are superficial, often pigmented, epithelial lesions that are usually warty but may occur as smooth papules. Examples include nevi, warts, lichen planus Lichen Planus Lichen planus is a recurrent, pruritic, inflammatory eruption characterized by small, discrete, polygonal, flat-topped, violaceous papules that may coalesce into rough scaly plaques, often accompanied. Papules are elevated lesions usually < 10 mm in diameter that can be felt or palpated.
Pinpoint red spots on skin manual#
The most serious of these are discussed elsewhere in THE MANUAL and include Stevens-Johnson syndrome and toxic epidermal necrolysis, hypersensitivity. read more (can also have papules and plaques), and some allergic drug eruptions Drug Eruptions and Reactions Drugs can cause multiple skin eruptions and reactions. It is characterized by fever, cough, coryza, conjunctivitis, an enanthem (Koplik spots) on the oral mucosa. read more, measles Measles Measles is a highly contagious viral infection that is most common among children. read more, rubella Rubella (See also Congenital Rubella.) Rubella is a viral infection that may cause adenopathy, rash, and sometimes constitutional symptoms, which are usually mild and brief. read more, and the rashes of rickettsial infections Overview of Rickettsial and Related Infections Rickettsial diseases (rickettsioses) and related diseases (anaplasmosis, ehrlichiosis, Q fever, scrub typhus) are caused by a group of gram-negative, obligately intracellular coccobacilli. Port-wine stains are capillary vascular malformations that are present at birth and that manifest. Examples include freckles, flat moles, tattoos, and port-wine stains Capillary Malformations Capillary malformations are present at birth and appear as flat, pink, red, or purplish lesions. Macules represent a change in color and are not raised or depressed compared to the skin surface.
Macules are flat, nonpalpable lesions usually < 10 mm in diameter.
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