Lm. Hill et al., SONOGRAPHIC DOCUMENTATION OF UTERINE RETROVERSION MIMICKING UTERINE SACCULATION, American journal of perinatology, 10(5), 1993, pp. 398-400
Uterine retroversion during the first trimester is quite common. Howev
er, as the uterus increases in size, self-correction usually occurs an
d the second trimester pregnant uterus becomes an abdominal organ. If
anteversion does not occur, pelvic impaction will result. The prevalen
ce of late first and early second trimester uterine impaction is appro
ximately 1 in 3000 pregnancies. Our case documents sonographically the
spontaneous resolution of a markedly retroverted uterus at 26 weeks'
gestation.