인어체(Sirenomelia) 기형(부검증례보고)

Abstract

Sirenomelia is referred to a monster of fused lower extremities. and is always associated with urogenital system anomalies and often other malformations as well. This paper reports a case of sirenomelia occurring in one of monozygotic twins. The other member of the twin. was normal. The affected male infant died immediately after birth and showed symmelia dipus. This fusion of lower extremities was associated with lumbar meningomyelocele. There were atresia ani as well as agenesis of kidneys, urinary bladder, rectum, urethra and prostate. The brain showed Arnold-Chiari malformation (type II) and internal hydrocephalus. A review of literature on sirenomelia occurring in twins was made, and the pathogenesis of associated cloacal anomalies in sirenomelia was discussed.