Question

Arianna was diagnosed with mononucleosis, an infectious disease that targets B-lymphocytes. The doctor palpated her left side, just below the rib cage, and told Arianna she was checking to see if a certain organ was enlarged, a complication that can occur with mononucleosis. What lymphatic organ was the doctor checking, and why would it become enlarged? Include some explanation of the anatomy and histology of this organ in your answer.

Thanks in advance!

Answer 1