Mandell J, Lillehei C W, Greene M, Benacerraf B R
Division of Urology, Children's Hospital; Boston, MA 02115.
J Pediatr Surg. 1992 Jan;27(1):82-4. doi: 10.1016/0022-3468(92)90112-k.
The finding of extraluminal calcifications is commonly reported and usually indicates intrauterine intestinal perforation with intraperitoneal extravasation of meconium, most often associated with intestinal obstruction and/or atresias. Intraluminal calcification of meconium is more rare and appears to result from the mixing of stagnant urine and meconium in utero. The presence of the intraluminal calcifications in a dilated loop of intestine, particularly with an associated urinary tract abnormality, should suggest a rectourinary fistula. Two cases of prenatally diagnosed imperforate anus with rectourinary fistulae are reported.
管腔外钙化的发现常有报道，通常提示宫内肠穿孔伴胎粪腹腔内渗出，最常见于伴有肠梗阻和/或闭锁时。胎粪管腔内钙化较为少见，似乎是由于宫内尿液和胎粪混合所致。扩张肠袢内出现管腔内钙化，尤其是伴有泌尿系统异常时，应考虑直肠泌尿瘘。本文报告2例产前诊断为肛门闭锁伴直肠泌尿瘘的病例。
