Wells' syndrome with lock jaw: report of a case in Thai patient.

A case of Wells' syndrome with lock jaw in a 26-year-old Thai female is presented. The clinical features, the course of disease, the histological findings of tissue eosinophilia and flame figures and also significant peripheral blood eosinophilia support the diagnosis of Wells' syndrome in this patient. To the best of our knowledge this is the first case reported in Thailand. The association of lock jaw and Wells' syndrome has never been published in the literature.