familial lipomyelomeningocele
Lipomyelomeningocele is a form of spina bifida occulta with a distinct pathogenesis that differentiates it from open neural tube defects (open NTDs). Familial forms are rare and the condition may be polygenic, with possible autosomal recessive pattern of inheritance.
References
Kannu P, Furneaux C, Aftimos S. Familial lipomyelomeningocele: a further report. Am J Med Genet A. 2005 Jan 1;132(1):90-2. PMID: 15551328