ANCA vasculitis and Sjögren syndrome are two rare diseases, and even more rarely associated. These two conditions have specific organ involvements, and specific follow-up.

The Investigators hypothesise that patients with co-occurrence of these two diseases may have a singular clinical course.

Inclusion criteria:

• Diagnosis of ANCA vasculitis based on clinical, immunological and histopathological features.
• Diagnosis of Sjögren syndrom based on ACR/EULAR 2016 criteria.

Exclusion criteria:

• Age < 18 years
• Insuffisant data during follow-up

Patients treated in internal medicine services in secondary care centers of Languedoc-Roussillon region.

NC