A. Miliria profunda.
B. Seborrhoeic dermatitis.
C. Lichen planus.
D. Pustular psoriasis.
Pustular psoriasis is an uncommon form of psoriasis consisting of widespread pustules on an erythematous background.
Pustular psoriasis may result in erythroderma. Cutaneous lesions characteristic of psoriasis vulgaris can be present before, during, or after an acute pustular episode.
Types of pustular psoriasis
The acute generalized type is also termed von Zumbusch variant. This form of pustular psoriasis is accompanied by fever and toxicity, and it may be fatal if proper supportive measures are not taken during the acute phase.
The annular (or circinate) type is also known as subacute generalized pustular psoriasis. It tends to run a subacute or chronic course with fewer systemic manifestations. A disproportionately high number of cases are found in the pediatric population.
A juvenile or infantile type of pustular psoriasis has been described, but it is the least common form.