The ultrastructure of 11 cases of human neonatal thymuses , including 5 cases of normal thymuses and 6 cases of atrophic thymuses , had been studied by transmission electron microscope .
应用透射电镜观察了11例人新生儿胸腺的超微结构,其中基本正常胸腺5例,萎缩胸腺6例.
It had been found that macrophages phagocytized many necrotic thymocytes in atrophic thymuses , epithelial cells degenerated and breaked apart and the frame of epithelium was damaged in the severe atrophic thymuses .
