Grading the Response to Therapy in a Patient with Psoriasis

The response of a patient with psoriasis to therapy can be graded based on clinical appearance of the lesions.

Parameters:

(1) scale

(2) erythema

(3) plaques

Scale	Erythema	Plaques	Response
may be worse	may be worse	may be worse	worse
no change	no change	no change	no change
may be slightly less	may be slightly less	NA	minimal improvement
less	less	partial flattening	definitive improvement
less	less	nearly complete flattening but borders still palpable	considerable improvement
none or minimal	none or minimal	complete flattening, including borders; plaques may be outlined by pigmentation	clearing

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