allantoic cyst

allantoic cyst

lesion in the proximal part of the umbilical cord that is a remnant of the extraembryonic part of the allantois; usually resolves spontaneously but it may be associated with an omphalocele.
References in periodicals archive ?
We present a baby with this rare condition associated with an allantoic cyst and a thickened umbilical cord.
This demonstrated that the allantoic cyst filled with bladder irrigation (figure 1B,C), and that there was no congenital bladder outlet obstruction.
Antenatally the differential diagnosis of patent urachus includes pseudo-cyst (degeneration of Wharton's jelly), allantoic cyst , omphalo-mesentric duct cysts, anterior abdominal wall defects, vascular lesions of the umbilical cord and bladder exstrophy.