[Use in histological technic of naphtol AS-D chloroacetate for demonstration of granulocyte series elements]

The authors report their experience of a histo-enzymatic method, using Naphtol AS-D Chloroacetate as a substrate, for the specific demonstration of elements of the granulocyte series, in histological sections, after formol fixation and mounting in paraffin wax. This simple and reliable staining technique offers the possibility of very rapid diagnostic orientation in haematological conditions.