Follow-up study of recurrent parotitis in children.

Recurrent parotitis in children is a well-described but rare condition of unknown cause. In this follow-up investigation the long-term course of the disease was studied both clinically and radiographically. In 23 of 25 patients investigated, the clinical symptoms disappeared before the patients were 22 years of age, independent of a given therapy. However, sialographic changes, mostly in the form of sialectasis, were seen on follow-up in the majority of cases, in spite of the fact that the patients were clinically symptom free.