A previously healthy 61-year-old man was admitted to our hospital in June, 2014, with a 3 week history of low-grade fever, general fatigue, and dyspnoea on exertion. He denied weight loss, abdominal pain, changes in bowel habit, or bleeding, and had no history of abdominal surgery or trauma. On examination, the spleen edge was palpable 10 cm below the left costal margin, but there was no hepatomegaly or lymphadenopathy.
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