Sialoliths are commonly 1-10 mm in size, but giant sialoliths (greater than 3.5 cm) have been reported occasionally. Large sialoliths like the one seen in this case are relatively rare. The largest reported sialolith was 6-cm in length and had a dry weight of 50 grams. Generally, CT in this setting is best performed without administration of contrast material, since small opacified blood vessels may simulate small sialoliths. However, if an abscess or an inflammatory process is suspected, contrast may be administered after identifying the stone on unenhanced scans
Second opinion by- Teleradiology Providers
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