A rare congenital anomaly, bridge-like appendiceal fistula to the terminal ileum, demonstrated by MDCT

作者：Takeuchi Kayo; Kosaka Nobuyuki^*; Kinoshita Kazuyuki; Sakai Toyohiko; Sawai Katsuji; Imamura Yoshiaki; Kimura Hirohiko

来源：Surgical and Radiologic Anatomy, 2013, 35(6): 523-527.

DOI：10.1007/s00276-012-1055-3

• Appendix
• Computed tomography
• Anatomical anomaly
• Multi-planar reconstruction (MPR)

Although appendiceal anatomical anomalies are very rare, understanding of the anatomical details of these anomalies is important for surgery. In this case report, we present images from multi-detector row computed tomography (MDCT) and histological findings of a rare anatomical appendiceal anomaly originating from the cecum and opening into the terminal ileum like a bridge. These anatomical details were clearly depicted on MDCT with multi-planar reconstruction. MDCT demonstrated a communication between the appendix and terminal ileum. Histological analysis revealed that a normal mucosal layer was maintained from the appendix to the connected ileum, without any evidence of inflammatory or neoplastic changes, and only thickening of the muscular layer of the appendix was identified. Based on these histological findings, the appendix was considered to represent an anatomical anomaly rather than secondary fistula caused by inflammation or neoplasm, which has not yet been reported.

• 出版日期2013-8