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: Surgery
Commonly affected lymph nodes in non-Hodgkin's Lymphoma are all except 
Select and explain. 
A. Epitrochear Lymph nodes, B. Peripheral lymph nodes, C. Inner waldeyer ring, D. Mediastinal lymph nodes
D: Mediastinal lymph nodes
Answer: D: Mediastinal lymph nodes 
Explanation: Inner Waldeyer Ring, Epitrochlear lymph nodes, Peripheral lymph nodes are commonly involved in Non-hodgkin's Lymphoma.