prozymogen

Sonic tumor cells had nuclear goovas. 3 cases showed abundant mitochondria, rough endoplasm reticulum. neurosecretory granules, prozymogen-granule-like particles and annulate lamellae.

瘤细胞有丰富的线粒体质网，可见到神经泌颗粒，酶原样颗粒特征的环状板层体。