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The content of the hernial sac may comprise peritoneal cavity elements, such as small and large bowel loops, visceral adipose tissue, the greater omentum, appendix (amyand hernia), and Meckel's diverticulum. The sliding of part of the urinary bladder wall to the inguinal canal is rare, being observed in 1%-4% (0.5%-3%) of inguinal hernia cases. Complete migration of the urinary bladder to the scrotum is considered a rare anomaly. As of today, 100 such cases have been described.
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Cybułka et al. (2015) studied this question.
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