A plunging ranula is a relatively uncommon phenomenon, presenting as mucous extravasation from a sublingual gland into t摘要颈部蛤蟆肿为临床上不常见的疾病，其成因是由于舌下腺黏液外渗入颈部间隙中，造成无上皮内衬的假性囊肿。
We reported a case of an abdominal cerebrospinal fluid pseudocyst as a rare complication of ventriculoperitoneal shunt.本篇报导一个脑室腹腔引流术后生成腹腔内伪囊肿并发症的罕见病例。