Ta. Eldiasty et al., BLADDER STONE - A COMPLICATION OF INTRAVESICAL MIGRATION OF LIPPES LOOP, Scandinavian journal of urology and nephrology, 27(2), 1993, pp. 279-280
We report on a woman in whom an intrauterine contraceptive device (Lip
pes loop) migrated from the uterus to the bladder with formation of a
calculus. Eight years elapsed between intrauterine insertion of the de
vice and its retrieval with the calculus from the bladder.