Hello and welcome to HCM,
Well it is difficult to comment anything on the basis of just dark shadows on upper and lower MRI
However, just to give you a brief ovarview.
Any mass which is described to have enhancement on MRI or CT scan
suggests a mass which is well vascularized.
A vascular lesion can be anything- an infectious focus, an inflammtory focus or a cancer.
The imaging studies have to be correlated with the clinical findings.
I hope you are helped by my answer.
Thanks and take care.
Dr Shailja P Wahal