269例新生儿颅内出血的临床病理研究

新生儿颅内出血是新生儿时期常见病,也是引起新生儿死亡的重要原因之一,应高度重视和防止颅内出血的发生。生后第一周是颅内出血发病和死亡的高峰时期,颅内出血漏诊率高达55.4％,是值得围产期工作者机度重视的一个问题。提高颅内出血的诊断率除了思想上重视外,还应科学地改善诊断的技术设备。     

硬脂酸取代二甲苯石蜡制片

硬脂酸取代二甲苯石蜡制片耿德芬（北京铁路总医院病理科１０００３８）石蜡组织切片的制作中要经过一个浸蜡透明过程。传统的透明剂是二甲苯，对人体危害极大，是一种潜在致癌物质，广大病理技术工作者一直在探索寻找二甲苯的替代物，我们试用硬脂酸替代二甲苯，经过两年...     

MALIGNANT HISTIOCYTOSIS: A STUDY ON CLINICOPATHOLOGICAL FEATURES AND CELL ORIGIN

Thirty- one autopsy cases previously diagnosed as malignant histiocytosis (MH) were studied by means of immunohistochemical staining. Antibodies detecting the formalin resistant epitopes on T- cells, B- cells and those of histiocyte/monocyte origin were used. It was shown that the malignant histiocytes reacted only to the cell markers derived from histlocyte/monocyte. and only a part of lymphocytes showed positive reaction to the T and B cell markers. It is suggested that the histiocyte/monocyte lineage is the possible origin of the malignant proliferating cells in MH. The clinicopathological features and the differentiation of MH from familial erythrophagocytic lymphohistiocytosis, virus-associated hemophagocytic syndrome and malignant lymphoma are described. The pathogenesis. the causes of death and the points for attention in the treatment of MH are also discussed.