Diagnosis: Psoriasis coloured skin
Description: Marked hyperkeratotic psoriasis on the hands
Morphology: Red,scaly
Site: Hand,dorsum
Sex: M
Age: 45
Type: Clinical
Submitted By: Ian McColl
Differential DiagnosisHistory:
With psoriasis in darker coloured skin the erythema is less obvious as in these images. Scaling can still be significant and the distribution of psoriasis remains the same. UV is less effective treatment and much higher doses are required if it is used.