Sjögren's disease & overlap diseases

The diagnostic value and clinical relevance of salivary gland ultrasound in patients with highly suspected Sjögren’s Disease: a prospective monocentric study

Arthritis Res TherPublished Diagnostic accuracy study

Authors' conclusion

Although the discriminatory efficacy of SGUS in patients highly suspected of SjD is suboptimal, SGUS may offer significant benefits for a specific subgroup of these patients. Grade 3 ultrasound findings are strongly associated with positive biopsy results and USFR, indicating a potential role in diagnosis and disease evaluation.

Study context

Population
Patients with high suspicion of SjD130 diagnosed with SjD
Participants
171 patients
Comparison
Salivary gland ultrasound (SGUS) vs labial salivary gland biopsy (LSGB) and anti-Ro/SSA antibodies for diagnosis of SjD
Outcome
Diagnostic accuracy of SGUS for SjD
Methodological detailscross-sectional, prospective cohort, monocentric
  • Cross-sectional
  • Prospective cohort
  • Monocentric

Performance

As reported in the abstract

Diagnosis of SjD
Test or modelAUCSensitivitySpecificity
SGUS0.780.520.93
LSGB0.90— not stated in the abstract— not stated in the abstract
Anti-Ro/SSA0.79— not stated in the abstract— not stated in the abstract

AUC

SGUS0.78
LSGB0.90
Anti-Ro/SSA0.79

Sensitivity

SGUS0.52
LSGB— not stated in the abstract
Anti-Ro/SSA— not stated in the abstract

Specificity

SGUS0.93
LSGB— not stated in the abstract
Anti-Ro/SSA— not stated in the abstract

— not stated in the abstract

Further findings

SGUS OMERACT total score combined with anti-SSA antibodies or LSGB

Specificity of combination
1.00

PG vs SMG ultrasound grading

Diagnostic accuracy comparable; SMG grading higher sensitivity but lower specificity than PG grading

SGUS grade 3 predicting positive biopsy

AUC
0.77

Correlation of SGUS grading with unstimulated salivary flow rates (USFR)

Spearman coefficient, PG
−0.45
Spearman coefficient, SMG
−0.51

Original publication

The diagnostic value and clinical relevance of salivary gland ultrasound in patients with highly suspected Sjögren’s Disease: a prospective monocentric study. Arthritis Res Ther. Published 2 September 2025. doi:10.1186/s13075-025-03642-4

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