Tubarial salivary glands show a low relative contribution to functional salivary gland tissue mass
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View abstract on PubMed
Summary
This summary is machine-generated.The newly identified tubarial salivary glands (TSGs) show PSMA uptake comparable to sublingual glands, potentially impacting xerostomia after PSMA therapy. Further research is needed to correlate uptake with salivary function.
Area Of Science
- Nuclear Medicine
- Radiology
- Oncology
Background
- Tubarial salivary glands (TSGs) were recently identified in the nasopharyngeal wall via PSMA PET/CT.
- The role of TSGs in overall salivary function and their contribution to xerostomia after radiotherapy is unknown.
Purpose Of The Study
- To determine the presence of TSGs on PSMA PET/CT scans.
- To quantify PSMA uptake in TSGs and compare it with other major salivary glands.
Main Methods
- Analysis of <sup>68</sup>Ga-PSMA-11 PET/CT scans from 100 prostate cancer patients.
- Measurement of standardized uptake values (SUVmean, SUVmax) and total organ PSMA (TO-PSMA) in TSGs and other salivary glands (parotid, submandibular, sublingual).
Main Results
- TSGs were visualized in 95% of scans.
- PSMA uptake (SUVmean, SUVmax, TO-PSMA) in TSGs was comparable to sublingual glands but significantly lower than parotid and submandibular glands.
- The relationship between PSMA uptake and saliva production requires further investigation.
Conclusions
- TSG PSMA uptake is most similar to sublingual glands.
- The clinical significance of TSG PSMA uptake regarding salivary function and xerostomia needs further study.
- Future research should explore the correlation between PSMA uptake and salivary function before and after PSMA therapy.
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