Plasma zinc concentration in palmoplantar pustulosis.

In 18 ambulant patients with palmoplantar pustulosis low plasma zinc concentrations were observed. During treatment with an all-trans aromatic retinoid (RO-10-9359) the values increased while at the same time the skin condition improved in particular with regard to the pustule formation. The observed low plasma zinc values may in some way be related to pustulosis but not as causal factor.