Table 1: Summary of cases of granular cell tumors involving the anal sphincters: Demographics, treatments, and outcomes.

Cohen, et al. [7] Mistrangelo, et al. [8] Wan, et al. [9] Current case
Age (years) 75 46 48 52
Gender Female Female Female Female
Location Internal anal sphincter External anal sphincter External anal sphincter External anal sphincter
Excision strategy Local excision with cuff of internal sphincter, preservation of rectal mucosa, external anal sphincter, and levator ani Local excision with partial cuff of external anal sphincter Local excision with preservation of anoderm and puborectalis Local excision with preservation of internal anal sphincter
Repair technique Primary repair of internal sphincter, plication of levator ani and external sphincter, endorectal advancement flap No repair required Overlapping sphincteroplasty of external and internal anal sphincter, levatorplasty with bioprosthetic mesh Overlapping sphincteroplasty of external anal sphincter
Follow Up 5 years Not reported 3 months 8 months
Local control No recurrence No recurrence No recurrence Residual vs. recurrent soft tissue mass on imaging, not on exam
Continence Continent of stool and flatus Not reported Continent of stool and flatus Continent of stool and flatus, rare accidents