Studies have shown differences between right- and left-sided colon carcinomas and today they are considered to be two different pathological entities. Available data even shows higher mortality rates in patients with right-sided carcinomas. Furthermore, carcinomas of the right and left colon show different geographical and demographical distribution: right colon carcinoma more commonly occurs in the elderly and in women living in regions with a low incidence of colorectal carcinoma. On the other hand, left colon carcinoma is more frequently found in male and middle-aged patients.
Regarding the inguinal hernia containing urinary bladder, it represents an uncommon finding, (1-5% of inguinal hernias). Urinary tract symptoms are usually not present. The optimal treatment method is open surgery.