Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2000-3-21
pubmed:abstractText
An abnormal salivary scintigram is an accepted objective criterion in the diagnosis of primary and secondary Sjögren's syndrome, an immune-mediated disorder characterized by xerostomia and kerato-conjunctivitis sicca. However, chronic sialadenitis constitutes a major differential diagnostic consideration in the xerostomic population. We investigated 39 cases of biopsy-confirmed chronic sialadenitis and 152 individuals with first- or second-degree Sjögren's syndrome, according to international classification criteria. We analysed scintigraphic defects in terms of glands per patient, distribution patterns, kinetics and severity. Relative to Sjögren's syndrome, chronic sialadenitis showed significantly fewer defective glands per patient, less frequent dual parotid-submandibular defects, fewer combined deficits of uptake and discharge, and milder uptake failure. No statistically significant differences were found in the frequency of single gland abnormality, predilection for submandibular involvement, and respective proportions of uptake-only and discharge-only defects. Unevaluable discharge due to low uptake, although comprising only 34% of test-positive cases, appeared to be a highly specific but insensitive scintigraphic marker for Sjögren's syndrome. In non-irradiated xerostomic populations, scintigraphy provides specific, albeit limited, diagnostic information. The procedure's ability to distinguish uptake failure from secretory failure may be a useful asset in guiding clinical management strategies and estimating outcomes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0143-3636
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1123-32
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Scintigraphic features of chronic sialadenitis and Sjögren's syndrome: a comparison.
pubmed:affiliation
Division of Nuclear Medicine, University of Pennsylvania Health Systems, Philadelphia, USA.
pubmed:publicationType
Journal Article, Comparative Study