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Non-enhanced CT images demonstrate a large, oval-shaped hyper-dense stone in the right sub-mandibular gland duct (Warthon's duct) measuring 1.6 cm x 1 cm x 0.8 cm in size. It is also associated with proximal intra-mandibular duct dilatation. There is no abnormal collection in its vicinity.
The right submandibular gland is abnormally enlarged due to inflammatory process.