History of lymphoma.

J. Stewart Edmunds, MD., PhD.

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Abstract:  6 year old boy with history of non Hodgkin's lymphoma. Two FDG PET/CTs were performed for lymphoma restaging (Image 1 from first study, remaining images from second study two months later and subsequent CECT).
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Question Text 

What is the best explanation for the increased renal activity on
the 2 month follow up FDG PET/CT scan?
 

Answers
 Answer: Normal concentration of FDG in urine. 
Correct Answer? 
No
Answers
 Answer: Hydronephrosis. 
Correct Answer? 
No
Answers
 Answer: Pyelonephritis. 
Correct Answer? 
No
Answers
 Answer: Lymphoma recurrence. 
Correct Answer? 
Yes
Answers
 Answer: Renal vein thrombosis. 
Correct Answer? 
No
 
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