PT - JOURNAL ARTICLE AU - Chinedu Brian Egu AU - Ashwin Kumaria AU - Alistair Paterson AU - Iain Robertson TI - Delayed presentation of syringomyelia after retrosigmoid craniectomy and resection of vestibular schwannoma: discussion of mechanisms AID - 10.1136/bcr-2021-246714 DP - 2021 Dec 01 TA - BMJ Case Reports PG - e246714 VI - 14 IP - 12 4099 - http://casereports.bmj.com/content/14/12/e246714.short 4100 - http://casereports.bmj.com/content/14/12/e246714.full SO - BMJ Case Reports2021 Dec 01; 14 AB - We present a case of syringomyelia following retrosigmoid craniectomy and resection of vestibular schwannoma complicated by Cerebrospinal fluid (CSF) leak, multiple infections and CSF diversion procedures. We believe this is the first reported case of syrinx formation after this type of surgery. Potential mechanisms by which the syrinx may have developed are discussed.