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Case 18. A 29-year-old man with severe left submandibular swelling shows total shrinkage after a single OK-432 injection.
A and B, Initial contrast-enhanced CT scan shows a large plunging ranula in the left sublingual (arrows) and submandibular spaces (arrowheads) with extending to the upper neck.
C and D, Follow-up postcontrast CT scan obtained 6 months after OK-432 sclerotherapy depicts total shrinkage of the plunging ranula.
