vitellointestinal

Adjective

vitellointestinal (not comparable)

1. Of or pertaining to both the yolk sac and the intestine, as (usually, more specifically) relating to the vitelline duct (that is, the vitellointestinal duct or yolk stalk), a passage between the yolk sac and midgut that usually disappears during embryonic development but sometimes persists congenitally as a diverticulum or fistula.
   • Persistence of the vitellointestinal duct as a whole or part of it leads to a wide variety of anomalies–Meckel's diverticulum is the commonest lesion and a PVID is the rarest.2013 July 10, Ramnik V Patel et al., “Neonatal prolapsed patent vitellointestinal duct”, in BMJ Case Reports, volume 2013, →DOI
   • A successful repair of patent vitellointestinal duct and prolapse of the small bowel has been presented. Only with a surgical approach to cutaneous duct remnants can a physician be certain to exclude a patent vitellointestinal duct, Meckel's diverticulum, or potential obstructing band.1967, RM Davis, RW Kehm, “Omphalocele with patent vitellointestinal duct and ileal prolapse”, in Am J Surg, volume 113, number 4, →PMID, pages 571–573