Ultrasonic diagnosis of perineal endometriosis

Objective To investigate the clinical value of ultrasound in diagnosis of perineal endometriosis(PEM). Methods Perineal ultrasonic results of 23PEM patients confirmed with surgery and histopathology were retrospectively analyzed.Results All 24lesions in 23patients were detected with ultrasound.Twenty-two lesions(22/24,91.67%) manifested as hypoechoic area with unclear margins,some with small anechoic area inside.The shape of lesions were nodular or bundle-like.Blood signals were detected with CDFI in 59.09%(13/22)lesions.Volume of lesions decreased after GnRHa medication.All patients with anal sphincter involvement were diagnosed correctively with perineal ultrasonography.Conclusion Ultrasound is useful in diagnosis of PEM and evaluation on anal sphincter involvement,therefore should be used as an imperative imaging modality in preoperative decision of these patients.