Fig 1.
Gray-scale sonography and color Doppler sonography of twisted and normal testis.
A: homogeneous testicular essence in the normal testicle. B: well blood flow signal inside in the normal testicle. C: swollen twisted testicle and heterogeneous echo inside. D: absent blood flow signal in the twisted testicle.
Fig 2.
The SWE imaging of twisted and normal testicles.
A: the SWE imaging of twisted testicles; B: the SWE imaging of normal testicles.
Fig 3.
The Emean, Emax, Emin and SD comparison in the border area of torsional and normal testis.
Compared with the Emean, Emax, Emin and SD values in the border area of torsional testis, *P<0.05.
Fig 4.
The Emean, Emax, Emin and SD comparison in the central area of torsional and normal testis.
Compared with the Emean, Emax, Emin and SD values in the central area of normal testis, *P<0.05.
Fig 5.
The Emean, Emax, Emin and SD comparison in the central area of torsional testis measured by two senior sonographers.
Fig 6.
The pathological result of torsional testis.
6A-6B: the orchiectomy specimens showed that the size of torsional testis increased and the testis infarction appeared dark red or jet black; 6C-6E: HE staining showed that the lobular gap cavities of infarct testis was filled with diffuse hemorrhage and sporadic died interstitial cells, a large number of spermatogonia, extensive coagulation necrosis of spermatocytes in seminiferous tubules, interstitial hyperplasia and lymphocyte infiltration.