What classic sign can be seen on this ultrasound?
The whirlpool sign seen in ovarian torsion, representing a twisted ovarian pedicle.
Ultrasound was performed in retrospect, confirming the findings described on MRI.
No internal venous flow was identified on colour Doppler.
The last image stack nicely demonstrates the whirlpool sign seen in ovarian torsion, which is characteristic for a twisted ovarian pedicle.