Fig. 2

a Successive axial CT images from the inguinal canal to the scrotum show the needle-filled appendix becoming thicker inferiorly within the hernia sac, fluid within the sac, and the needle tip passing posterior and outside of the appendiceal lumen. The most inferior slice shows the testis and small hydrocele. b Successive coronal reformatted CT images show the appendix connecting to the cecal tip and passing into the inguinal canal with surrounding subcutaneous fat stranding. c Sagittal image of the right inguinal canal showing the superior end of the needle passing through the posterior wall of the thickened appendix, with fluid in the inguinal canal. Double arrow, appendix; triple arrow, pin; dashed arrow, point where pin passes through the appendiceal wall; solid arrow, subcutaneous swelling in the groin