Salivary gland scintigraphy in patients with primary Sjögren's syndrome.

Methodology, interpretation and results of salivary gland scintigraphy in 33 patients with primary Sjögren's syndrome (pSs) are presented. Patients were divided in two groups: 14 patients with isolated pSs and 19 patients with pSs and extraglandulary manifestations. There was no correlation between scintigraphic findings and duration of disease, and between scintigraphic findings and presence of recurrent swelling of parotid glands. The damage of salivary glands, detected by scintigraphy, was more marked in patients with pSs and extraglandulary manifestations than in patients with isolated pSs.