Diagnostic difficulties
An examination of the entire skin, including the scalp, nails and mucous membranes, is essential as the diagnosis of skin disease involves an appreciation of several features: the pattern of distribution of lesions, the morphology of individual lesions and whether or not the nails, mucous membranes and/or scalp are involved. Description of an individual skin lesion is often perceived to be difficult by non-dermatologists, but if time is taken to formally describe the lesion, the diagnosis often becomes clear.
Dermatology in practice 2003; 11(2): 6–10
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