详细解释:【医】 恶性贫血, 进行性恶性贫血
英语解释：
名词 malignant anemia:
a chronic progressive anemia of older adults; thought to result from a lack of intrinsic factor (a substance secreted by the stomach that is responsible for the absorption of vitamin B12)同义词：pernicious anemia, pernicious anaemia, malignant anaemia