1. Case report: Imaging features of perianal leiomyoma;Kim;Br J Radiol,2010
2. Perianal leiomyoma involving the anal sphincter;Dasari;Ulster Med J,2007
3. Un caso de leiomioma profundidad del tejido blando. Hallazgos en TC y RM;Misumi;Radiat Med,2000
4. Leiomioma perianal;Salvans;Rev Esp Enferm Dig,2009
5. Anorectal leiomyomas: Report of two cases with different anatomical patterns and literature review;Campos;Rev Hosp Clin Fac Med Sao Paulo,2004