According to a recently published classification criteria for SS announced by the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR) in 2016, diagnosis of SS can be made based on the prevalence of anti-Ro antibodies in patients’ sera and the evaluation of minor salivary gland biopsy (MSGB)6. This evidence concerns the gene CALR and synovial sarcoma.