This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acute Lymphoblastic Leukemia, Subject name: Pathology
A young boy came with dyspnea and was found to have a mediastinal mass. Which of the following is known to produce mediastinal lymphadenopathy? 
Select and explain. 
A. Diffuse large B cell Lymphoma, B. B cell rich T cell lymphoma, C. Mediastinal rich B cell lymphoma, D. T cell Lymphoblastic ALL
D: T cell Lymphoblastic ALL
Answer: D: T cell Lymphoblastic ALL 
Explanation: mediastinal lymphadenopathy ,sternal tenderness and mediastinal mass are seen with ALL.