Table 1 Modified Cave-Wallbridge classification
From: Appendix perforation in appendix duplication in a man: a case report
Classification of types of appendix duplication | Features |
|---|---|
A [7] | Single cecum with various degrees of incomplete duplication |
B1 (bird type) [8] | Two appendixes symmetrically placed on either side of the ileocecal valve |
B2 (tenia coli type) [8] | One appendix arises from the cecum at the usual site, and the second appendix branches from the cecum along the lines of the tenia at various distances from the first |
One appendix arises from the usual site, and the second appendix arises from the hepatic flexura | |
One appendix arises from the usual site, and the second appendix arises from the splenic flexura | |
C [8] | Double cecum, each with an appendix |
Horseshoe appendix) [9] | One appendix has two openings into a common cecum |
Triple appendix [10] | One appendix arises from the cecum at the usual site, and two additional appendixes arise from the colon |