MRI of chronic recurrent parotitis in childhood.

摘要

PURPOSE: Chronic recurrent parotitis (CRP) is a rare inflammatory disease characterized by multiple episodes of unilateral or bilateral parotid inflammation over a period of years. The objective of this study was to evaluate the parotid glands using MRI during acute inflammation as well as during symptom-free intervals. METHOD: Twelve children with a history of CRP were included. Four patients were examined during the acute phase and eight children during symptom-free intervals. MR findings were correlated with the clinical status. RESULTS: Two different patterns were identified by MRI: acute inflammation versus chronic inflammation. Contrast enhancement of the parotid gland indicated acute inflammation. Cysts due to chronic inflammation were encountered in children who suffered multiple episodes of inflammation. CONCLUSION: Our findings suggest that CRP is characterized by recurrent, acute exacerbations of inflammation, resulting in a slowly progressive destruction of the parotid gland.