This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Myeloma, Subject name: Medicine
Russell body is found in: 
Select and explain. 
A. WBC, B. RBC, C. Mast cells, D. Plasma cells
D: Plasma cells
Answer: D: Plasma cells 
Explanation: Ans. D. Plasma cellsInclusion body:a. Russell body (intracytoplasmic) found in plasma cellb. Dutcher body (nuclear)c. Inclusion of fibril crystalline Rods