This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psoriasis, Subject name: Dental
Causes of erythroderma include following except 
Select and explain. 
A. Psoriasis, B. Pompholyx, C. Pemphigus foliaceus, D. Pityriasis rubra pilaris
B: Pompholyx
Answer: B: Pompholyx 
Explanation: Pompholyx is a form of eczema of the palms and soles in which oedema fluid accumulates to form visible vesicles or bullae. Erythroderma - Any inflammatory skin disease that affects >90% of BSA. Conditions causing Erythroderma in adults. * Hereditary disorders Ichthyosiform erythroderma Pityriasis rubra pilaris Psoriasis Eczema of various types Drugs-Especially organic Arsenic, Gold, Mercury; Occasionally, Penicillin, Barbiturates, etc. Pemphigus foliaceus Lymphoma and leukaemias Other skin diseases - Lichen planus - Dermatophytosis - Crusted scabies (Norwegian scabies) - Dermatomyositis