[Method for the stabilization of E-rosettes with glutaraldehyde]

A technically simple method of fixing E-rosettes is represented. Under the influence of glutaraldehyde of 0.5% the E-rosettes being themselves very fragile assume a solid form and may be firmly spread to smears. Comparative examinations made on fresh and panoptically stained preparations showed a good accordance of results. The advantages of this method consist in its easy handling, possible simultaneous or alternative application of two counting procedures and the possibility of having the test results registered in archives.