Abstract
Zinc iodide osmium tetroxide (ZIO), Lymph nodules Summary: The zinc iodide- osmium tetroxide (ZIO) fixation/staining method was applied for neurocytological study and also to examine several other tissue samples including human blood and bone marrow on nerve endings in the median eminence, epidermal langerhans cells of lymphoid tissue. Although precise specificity can not be attributed to the stainig reaction. Interesting staining patterns for different cell types in lymph node were observed by one of the ZIO staining solutions. The significance of ZIO positivity is briefly discussed.