It is most commonly seen in the submandibular gland and duct (about 80% of cases), followed by the parotid gland and duct
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| Contrast-enhanced CT of the neck demonstrates a stone (blue arrow) in the submandibular region of a dilated Wharton's Duct (red arrow) | 
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| Stone in the duct of the left obstructed parotid gland | 


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