This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oncology, Subject name: Medicine
[{'content': 'This technetium-99m sulfur colloid scan was performed after the patient presented with abdominal pain. Howell-Jolly bodies were present on a peripheral-blood smear. What is the diagnosis? \nSelect and explain. \nA. Hemochromatosis, B. Hydatidiform mole, C. Multiple myeloma, D. Pelvic spleen', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Answer D. Pelvic spleenAbdominal imaging after injection of technetium-99m revealed a normal liver and a pelvic spleen. Pelvic spleen can be complicated by torsion of the pedicle. Howell-Jolly bodies suggest functional asplenia.', 'role': 'assistant'}]