Pediatric patients with psoriasis and psychiatric disorders: premorbidity and comorbidity in a case-control study.

A statistically significant increase in psychiatric disorders occurs in disease periods in cases of pediatric psoriasis. Moreover, a high prevalence of psychiatric disorders was detected in the premorbid process. We think that it is important for these to be considered in the management of the disease and in controlling exacerbation, and for the mechanisms involved to be elucidated.