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We read with a great interest the recent contribution by Mossel et al,1 which brings new important data on the diagnostic value of major salivary ultrasonography (SGUS) for primary Sjögren’s syndrome (pSS), as reported in previous studies2–10 and stresses the need to evaluate the inclusion of SGUS into future classification criteria for the disease.
In their cohort of 103 consecutive patients clinically suspected for pSS, Mossel et al reported a good agreement between SGUS and labial and parotid salivary gland biopsy. Agreement was reported to be marginally higher for parotid gland biopsy (absolute agreement of 83%) than for minor labial salivary gland biopsy (absolute agreement 79%). However, the …
Contributors All the authors participated in the drafting of the letter and validated the final version.
Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.