“…In a 10-year meta-analysis the pooled sensitivity (83.8%) and pooled specificity (63.9%) showed a good accuracy of the transvaginal ultrasound in the hands of the skilled examiner [ 16 ]. Additional sonographic techniques like doppler-ultrasound, elastography and 3D transvaginal ultrasound can enhance the diagnostic reliability [ 17 , 18 ]. These diagnostic criteria might be missing in adolescents and young women [ 19 , 20 ].…”