目的 探讨先天性巨结肠的CT影像学表现，提高该病诊断准确性。方法 经急诊CT检查及手术证实的先天性巨结肠6 例，其中男5例、女1例，年龄2d-3w，回顾分析其MSCT表现。结果 经手术证实均为先天性巨结肠。结论 CT对先天 性巨结肠有重要诊断价值。

Objective To explore the CT manifestations of Hirschsprung's disease. Improve the diagnostic accuracy of the disease. Methods Six cases of congenital megacolon confirmed by emergency CT examination and operation, including 5 males and 1 females, aged from 2 days to 3 weeks,were retrospectively analyzed. Results Six cases were proved to be hirschsprung's disease by operation. Conclusion CT has important diagnostic value for Hirschsprung's disease.