ABSTRACT

Scope of the Problem Tumors of the anal canal and anal region are relatively rare, accounting for only

5% of all anorectal malignancies. The incidence of anal canal cancers are only 0.9 per 100,000.However, these rare malignancies do have a significant impact on qual­ ity of life. They are often diagnosed late as patients are hesitant to consult their physician regarding problems in the anal and perianal area. In the past, these lesions and their treatment often resulted in loss of sphincter function and necessitated a permanent colostomy. Recent advances in diagnosis, workup and especially treat­ ment has fortunately minimized the number of patients who require a permanent colostomy.