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
[{'content': 'Not seen idiopathic pulmonary hemosiderosis \nSelect and explain. \nA. Eosinopenia, B. Iron deficiency anemia, C. Diffuse alveolar hemorrhage, D. Hemoptysis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Eosinopenia): Eosinopenia is not a feature of Idiopathic Pulmonary Hemosiderosis Idiopathic Pulmonary Hemosiderosis (IPH) IPH is a disorder of unknown etiology characterized by recurrent episodes of Diffuse Alveolar Hemorrhage (DAH) It has been classically characterized by the triad of iron deficiency anemia, hemoptysis and alveolar infiltrates on chest radiographs.', 'role': 'assistant'}]