The patient had undergone surgery for an oral ranula 15 months previously, without complete excision of the sublingual gland.
The patient had undergone surgery for an oral ranula 15 months previously, without complete excision of the sublingual gland.
病人曾于一年半前曾接受过口底蛤蟆肿切除手术，但并未完整的摘除舌下腺。