Endoanal sonography in the assessment of perianal endometriosis with external anal sphincter involvement.
Endoanal sonography can be used in the assessment of benign and malignant anal conditions and to evaluate the anatomy of the anal sphincters. We used endoanal sonography with a 10-MHz rotating endocavitary probe to evaluate a 45-year-old woman with a perianal mass, fecal incontinence, and menses-associated perianal pain. She had had 2 vaginal deliveries requiring episiotomies. Biopsy of the mass showed endometrial tissue. The ultrasound examination showed a perianal mass and an external anal sphincter injury. A wide excision and sphincteroplasty were performed, with improvement of fecal continence and pain. Histopathologic examination of the mass confirmed perianal endometrioma in an episiotomy scar.
Hernández-Magro
Paulino Martínez
PM
Colon and Rectal Surgery Department, Hospital de Especialidades Centro Médico Nacional SXXI, Instituto Mexicano del Seguro Social, Colonia Héroes de Padierna, Codigo Postal 10700, Torre Angeles Consultorio 927, México City, México.
Villanueva Sáenz
Eduardo
E
Alvarez-Tostado Fernández
Fernando
F
Luis Rocha Ramírez
José
J
Valdés Ovalle
Miguel
M
D001003:Anal Canal / Q000000981:diagnostic imaging / Q000473:pathology*; D001004:Anus Diseases / Q000000981:diagnostic imaging* / Q000601:surgery; D003937:Diagnosis, Differential; D004715:Endometriosis / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged; D016896:Treatment Outcome; D014463:Ultrasonography / Q000379:methods