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Fig 5. Case 13. A 20-year-old man with tender swelling in the left submandibular area.
A and B, Initial enhanced CT scan shows multilocular, rim-enhancing cystic lesions in the right sublingual and submandibular space (arrows) with adjacent soft tissue infiltration and swelling (arrowheads). This abscess-like lesion was drained by pigtail catheter for 5 days. OK-432 sclerotherapy was performed 10 days after the pigtail catheter drainage of the plunging ranula.
C and D, Follow-up transverse and longitudinal sonograms obtained 11 months after OK-432 sclerotherapy shows complete shrinkage of the cystic lesion in the right sublingual space (arrowheads) and submandibular space (arrows).
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