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Derm Nomenclature II
Patterns and Distribution
19
Medical
Professional
01/01/2013

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Term
Annular
Definition
Seen in a ring shape. Tinea corporis, erythema migrans (the lesion associated with lyme disease), and granuloma annulare are three common examples.
Term
Discrete
Definition
Tend to remain separate. This is a helpful descriptive term but has little specific diagnostic significance.
Term
Clustered
Definition
Those that are grouped together. They are commonly seen in herpes simplex or with insect bites, for example.
Term
Confluent
Definition
The appearance of lesions important, but the pattern and distribution on the skin is as well.
Term
Dermatomal / Zosteriform
Definition
Follow a dermatome. The lesions of varicella zoster (also known as shingles) are the classic example, but there are other lesions that may assume the same pattern.
Term
Eczematoid
Definition
Inflamed with a tendency toward clustering, oozing, or crusting.
Term
Follicular
Definition
Lesions that specifically involve the hair follicle.
Term
Guttate
Definition
Look as though someone took a dropper and dropped this lesion on the skin. These lesions are characteristic of one form of psoriasis, though that is not the only example.
Term
Iris or Target Lesions
Definition
Target-shaped.
Term
Koebner Phenomenon
Definition
also called the isomorphic response, refers to the appearance of lesions along a site of injury. This is seen in a variety of conditions; for example, lichen planus, warts, molluscum contagiosum, psoriasis, lichen nitidus, and the systemic form of juvenile rheumatoid arthritis.
Term
Linear Lesions
Definition
Occur in a line or band-like configuration. This descriptive term may apply to a wide variety of disorders. (One should be certain that the lesions are not following a dermatome.)
Term
Multiform
Definition
These lesions have lesions of a variety of shapes.
Term
Reticular
Definition
Net-like lesions can be seen in a variety of circumstances; e.g., very commonly in newborns (or even grown children and adults) as cutis marmorata, or with livedo reticularis. The former fades as the skin is warmed the latter becomes more florid.
Term
Serpiginous
Definition
Wander as though following the track of a snake.
Term
Universalis
Definition
A widespread disorder that affects the entire skin.
Term
Scarletiniform
Definition
Have the pattern of scarlet fever. The patient with a this type of rash rash has innumerable small red papules that are widely and diffusely distributed. Patients with a variety of other conditions such as Kawasaki disease, viral infections, or drug reactions may have rashes with the same pattern.
Term
Strawberry Tongue
Definition
Patients with scarlet fever, Kawasaki disease or other conditions may develop a distinctive appearance of their tongues. Because of its resemblance to the well-known berry, the appearance is called "this term." Since this eruption is on a mucus membrane, it is called an enanthem.
Term
Morbilliform
Definition
The patient has a rash that looks like measles. The rash consists of macular lesions that are red and are usually 2-10 mm in diameter but may be confluent in places.
Term
Satellite Lesions
Definition
Commonly used to describe a portion of the rash of cutaneous candidiasis in which a beefy red plaque may be found surrounded by numerous, smaller red macules located adjacent to the body of the main lesions.
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