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
Myeloid sarcoma, which is tumor mass consisting of myeloid blasts occurring at anatomic sites other than bone marrow, are often characterized by chromosome aberrations all, EXCEPT: 
Select and explain. 
A. Monosomy 7, B. Trisomy 8, C. inv (16), D. t (15;17)
D: t (15;17)
Answer: D: t (15;17) 
Explanation: In AML Patients may present with symptoms from a myeloid sarcoma that is a tumor mass consisting of myeloid blasts occurring at anatomic sites other than bone marrow. This rare presentation, often characterized by chromosome aberrations may precede or coincide with AML. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 908