Pustular Psoriasis of the hand
Extensive erythematous plaques covered with silvery white scales.
With deep-seated dusky red macules and creamy-yellow pustules which may progress to hyperkeratotic papules
Criteria For Spot Diagnosis:
1. Erythematous lesion
2. plaque "raised lesion"
3. covered by silvery white scales
4. dusky red macules
5. creamy yellow pustules