Plunging ranulas treated with ultrasound- guided injection of OK-432: Case of three cases

Sclerotherapy with OK-432 injection has been recommended as the treatment of choice for plunging ranula because of its safety and minimal complications. However, the recurrence rate after sclerotherapy with OK-432 is variable and has been reported as 0-50%, and some reports have preferred surgical treatment despite the greater risk of potential complications. This article presents three cases of plunging ranula treated with ultrasound-guided injection of OK-432, resulting in successful regressions without major complications or recurrences. Ultrasound-guided intervention might increase the success ratio for sclerotherapy, despite the low number of patients for which it was effective in this study. (C) 2016 Asian AOMS, ASOMP, JSOP, JSOMS, JSOM, and JAMI. Published by Elsevier Ltd. All rights reserved.