Papulosquamous Diseases Diagnosis

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Psoriasis In Fig. 12-16 and 12-17 [above], we see plaques of dense adherent scale in the scalp. Circumscribed areas of micaceous scale in the scalp are a common presenting sign of psoriasis. This disorder can usually be differentiated from tinea capitis by the character of the scale, the sharp demarcation, and, usually, the absence of hair loss.

Source: Prose NS, Kristal L. Weinberg's Color Atlas of Pediatric Dermatology, 5e; 2017.