The feasibility of achieving curative resection of perianal pre-invasive and invasive lesions with preservation of fecal continence was studied prospectively. Resection of these lesions involved excision of as much as the anterior third of the external anal sphincter. Twenty-two patients had invasive cancer and nine had extensive carcinoma in situ suspicious for invasive disease on preoperative assessment. Anal reconstruction consisted of plication of the external anal sphincter and plication of the puborectalis muscles. The perianal/perineal defects were closed using bilateral rhomboid flaps in 21 patients, unilateral rhomboid flaps in five patients and local advancement flaps in five patients. Twenty-eight patients were ultimately continent of feces, although two required further surgery for incontinence. Two of the three incontinent patients had fecal incontinence before surgery. Two patients had recurrence of invasive cancer, neither of which was perineal or perianal. Curative surgery of selected perianal lesions with preservation of fecal continence can be achieved with local resection and reconstruction with the use of local full thickness skin flaps.
- perianal lesions
- local flaps
- fecal continence.
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