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. 2005 May-Jun;71(3):346-54.
doi: 10.1016/S1808-8694(15)31334-3. Epub 2005 Dec 14.

[Evaluation of sialometry and minor salivary gland biopsy in classification of Sjögren's Syndrome patients]

[Article in Portuguese]
Bianca Benatti de Azevedo  1 , Ivo Bussoloti Filho
Affiliations

[Evaluation of sialometry and minor salivary gland biopsy in classification of Sjögren's Syndrome patients]

[Article in Portuguese]
Bianca Benatti de Azevedo et al. Braz J Otorhinolaryngol. 2005 May-Jun.

Abstract

Sjögren's Syndrome is an autoimmune disease of the exocrine glands, mainly salivary and lachrymal glands. There is no gold standard test for diagnosis. Aim: evaluation of the importance of minor salivary gland biopsy and sialometry, isolated or associated, as methods for classification of Sjögren's Syndrome. Study design: Transversal cohort. Patients and Method: Seventy-two patients that reported dry mouth from January 1997 to September 2003 were investigated and classified, based on the established criteria. Non-stimulated sialometry was performed by the swab technique. Histopathology exams were evaluated for the presence of inflammatory focus. Results: Non-stimulated sialometry and minor salivary gland biopsy presented different sensitivities for primary Sjögren's Syndrome and for secondary Sjögren's Syndrome. Focal sialadenitis with higher focus score was characteristic of primary Sjögren's Syndrome. Biopsy and sialometry were compared and it was observed that specificity and positive predictive value of biopsy were higher. Comparing biopsy and biopsy associated with sialometry, it was observed that biopsy had higher sensitivity and negative predictive value. Specificity of biopsy associated with sialometry was higher. Comparing sialometry and biopsy associated with sialometry, it was observed that biopsy associated with sialometry presented higher positive predictive value and higher specificity. Sialometry's sensitivity was higher. Conclusions: Sialometry and biopsy tests presented different performances in primary Sjögren's Syndrome and secondary Sjögren's Syndrome; the positivity of the association of both tests increases the specificity for Sjögren's Syndrome (95%).

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Figures

Figure 1
Figure 1
Presence of inflammatory focus amidst glandular tissue, indicated by the arrows (HE 100X).
Figure 2
Figure 2
Confluent inflammatory foci indicated by the arrows that replace the glandular tissue (HE 50X). The red rectangle corresponds to area measurement.
See this image and copyright information in PMC

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