Triple [[spinal dysraphism]] is extremely rare. There are published reports of multiple discrete [[neural tube defect]]s with intervening normal segments that are explained by the multisite closure theory of primary [[neurulation]], having an association with [[Chiari malformation Type 2]] consistent with the unified [[theory of McLone]]. 

Dhandapani and Srinivasan report on a 1-year-old child with contiguous [[myelomeningocele]] and [[lipomyelomeningocele]] centered on Type I [[split cord malformation]] with [[Chiari malformation Type II]] and hydrocephalus. This composite anomaly is probably due to select abnormalities of the neurenteric canal during gastrulation, with a contiguous cascading impact on both dysjunction of the neural tube and closure of the [[neuropore]], resulting in a small posterior fossa, probably bringing the unified theory of McLone closer to the unified theory of Pang
((Dhandapani S, Srinivasan A. Contiguous triple spinal dysraphism associated
with Chiari malformation Type II and hydrocephalus: an embryological conundrum
between the unified theory of Pang and the unified theory of McLone. J Neurosurg 
Pediatr. 2016 Jan;17(1):103-6. doi: 10.3171/2015.6.PEDS15179. Epub 2015 Oct 16.
PubMed PMID: 26474100.
)).