Hi, thanks for the query
Bulky/ enlarged ovary on scan may be due to some polycystic ovary/ simple ovarian cyst
or due to ovarian neoplastic change(cancerous) or due to torsion of some cyst.
In your case, it more seems to be a ovarian cyst with a partial torsion.Torsion disrupts the blood supply of ovary and can permanently damage it.
In my opinion, you should get a repeat scan done urgently and get Color Doppler done to see ovarian blood supply.Also, take an early appointment with a gynecologist to avoid serious consequences.
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