PT  - JOURNAL ARTICLE
AU  - Orlando De Jesus
AU  - Christian Rios-Vicil
AU  - Joel E Pellot Cestero
AU  - Eric F Carro-Figueroa
TI  - Huge subcutaneous extraperitoneal pseudocyst after migration of the ventriculoperitoneal shunt catheter
AID  - 10.1136/bcr-2021-246681
DP  - 2021 Dec 01
TA  - BMJ Case Reports
PG  - e246681
VI  - 14
IP  - 12
4099  - http://casereports.bmj.com/content/14/12/e246681.short
4100  - http://casereports.bmj.com/content/14/12/e246681.full
SO  - BMJ Case Reports2021 Dec 01; 14
AB  - The formation of an intraperitoneal pseudocyst as a complication of ventriculoperitoneal shunts is well known. However, the formation of a pseudocyst at the subcutaneous extraperitoneal abdominal space is unusual and likely secondary to the migration of the peritoneal catheter. We present a 53-year-old male who had placement of a ventriculoperitoneal shunt for hydrocephalus secondary to a vestibular schwannoma. Five months later, he presented with an enormously distended abdomen. Investigations showed the peritoneal catheter in the extraperitoneal space within a large right lower quadrant abdominal wall pseudocyst. The patient was taken to the operating theatre, and the shunt was externalised at the original abdominal incision. Approximately 3 L of cerebrospinal fluid were aspirated from the distal peritoneal catheter. After negative cultures, a new peritoneal catheter was placed intraperitoneally at the contralateral lower abdominal quadrant. The contralateral quadrant was utilised to prevent fluid accumulation into the old extraperitoneal cavity.