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Updated: Jul 11, 2026
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Ultrasonographic Evaluation of Salivary Glands for Sjogren's Syndrome: Diagnostic and Monitoring Insights
Published on: October 13, 2023
MR imaging of labial glands
1Department of Radiology and Cancer Biology, Nagasaki University School of Dentistry, Nagasaki, Japan.
AJNR. American Journal of Neuroradiology
|September 12, 2007
Summary
High-resolution MRI effectively visualizes labial salivary glands, revealing distinct imaging features. Labial gland size was smaller in Sjögren syndrome patients, particularly in the upper lips.
Area of Science:
- Radiology
- Anatomy
- Medical Imaging
Background:
- Labial salivary glands are sites for tumors, cysts, and Sjögren syndrome diagnosis.
- Understanding labial gland imaging features is crucial but not well-established.
Purpose of the Study:
- To depict labial salivary gland anatomy using high-resolution Magnetic Resonance (MR) imaging.
- To characterize the imaging features of normal and diseased labial glands.
Main Methods:
- MR imaging of labial glands in 89 healthy individuals, 14 with Sjögren syndrome, and 3 with lip lesions.
- Utilized a 1.5T MR imager with 47- or 110-mm surface coils.
Main Results:
- Labial glands show high signal intensity on T1-weighted and fat-suppressed T2-weighted images, enhancing after gadolinium.
- Posterior gland portions are thicker; lower lip glands are larger than upper lip glands.
- Labial gland areas were significantly smaller in Sjögren syndrome patients, especially in the upper lips.
Conclusions:
- This study provides the first description of labial salivary gland imaging characteristics.
- High-resolution MR imaging is effective for delineating labial salivary glands.
