The method of quantitative morphology measurement was very valuable for correct diagnosis, and sub classification of PLB. So that it was great significance.

• 形态定量测定的方法对于PLB的正确诊断具有重要的参考价值 ,并对PLB的组织学分型能够提供客观的、准确的定量依据 ,因而具有十分重要的意义。