This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Renal vein thrombosis (RVT) may be seen in : 
Select and explain. 
A. Trauma, B. Renal Cell Ca, C. Pregnancy, D. All
D: All
Answer: D: All 
Explanation: Answer is A,B,C (All of the above) Trauma, Renal Cell Ca, Pregnancy, Nephrotic Syndrome and Dehydration can all be associated with Renal Vein Thrombosis Conditions associated with Renal Vein Thrombosis : Extrinsic compression (lymph nodes, aoic aneurysm, tumor) Invasion by renal cell carcinoma Dehydration (infants) Nephrotic syndrome Pregnancy or oral contraceptives