Thanks for writing in.
A double contrast CT of the abdomen will reveal whether the lesions are solid or cystic, vascular or avascular. This will lead to a clue as to whether they are benign or malignant in origin. If still the surgeon is unable to comment then a CT guided FNAC of the lesion will help in arriving at a diagnosis.MRI
scanning is not so helpful in diagnosis of abdominal lesions. Since you have nausea
then there is a likelihood of the primary cause being in the upper GI tract. This can be investgated by upper GI endoscopy
I hope this answers your querry.