Hello and welcome to HCM,
I will try to focus on the positive findings in your long and exhaustive history.
1. The head aches associated with 'aura'- nausea, visual disturbances, pain relieved by paracetamol
suggest migraine. An extra axial tumor
with calcification and cysts (? meningioma) can also produce headache, focal neurological symptoms but 'aura' is less likely to be associated with a brain tumor
2. There is a history of painful abdominal mass
, uterine enlargement and detection of a complex ovarian mass on the left side abdomen. This is likely to be an ovarian tumor
. Constitutional features- weight loss, fatigue are constitutional symptoms associated with malignancy. So, the second most probable pathology was an ovarian tumor.
3. Hyperemic pharyngeal mucosa suggests focus of infection due to which the patient was febrile.
4. Biochemical abnormalities- hypernatremia
, hypokalemia, hypoalbuminemia
and albuminuria suggests renal pathology.
Albuminuria is a feature of glomerular membrane damage.
Hypernatremia and hypokalemia are seen in tubulo-interstitial diseases.
So, these findings suggest pathology of all compartments of the kidney.
Hypokalemia is a dangerous condition.
As you have mentioned that, potassium replacement had been given, however, a recurrent fall in potassium levels can cause dangerous arrthymias and sudden death.
Moreover anasarca suggests a decompensated kidney.
Ovarian tumor or a brain tumor are unlikely to cause sudden death.
I hope my answer is of some help to you.
Thanks and take care
Dr Shailja P Wahal