对于典型白血病,诸如发热、贫血、出血倾向以及幼稚白细胞的出现等表现已为人们所熟知,故一般不准诊断。但是也有少数病例以某种不常见的症状为首发表现,往往造成诊断上的困难或误诊,应吸取教训。 For the typical leukemia, such as fever, anemia, bleeding tendency and the appearance of immature white blood cells and other performance is well known, it is generally not allowed to diagnose. However, there are also a few cases with some uncommon symptoms as the first manifestation, often resulting in diagnostic difficulties or misdiagnosis, should learn a lesson.