Symptomatic Sjögren's syndrome in mixed connective tissue disease.
Twelve of 25 patients with mixed connective tissue disease complained of xerostomia and/or ocular symptoms of keratoconjunctivitis sicca. In addition to the clinical features of mixed connective tissue disease, all 12 patients had high titers of antibody to the ribonuclease-sensitive component of the extractable nuclear antigen. Eight parents had both clinical xerostomia and keratoconjunctivitis sicca, one had keratoconjunctivitis sicca and salivary gland enlargement, while three had xerostomia but no ocular complaints. Sjögren's syndrome was confirmed in all 12 patients by means of Schirmer's tests, Rose Bengal staining tests, salivary gland scintiscans, radionuclide excretion studies in saliva, parotid sialographies, and lip biopsies. At least three of these tests were abnormal in all patients.[1]References
- Symptomatic Sjögren's syndrome in mixed connective tissue disease. Alarcón-Segovia, D. J. Rheumatol. (1984) [Pubmed]
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