Our methodological procedure established successful technique of the direct dyeing of elastic fibers and lamellas in elastic tissues. Experiments were carried out on a human autopsy material. Blocks rich in elastic fibers were fixed by 10% buffered neutral formaline and cut in the thickness of 5m. Deparafining of slides is done by xylol treatment (2x15min). Additional denaturation is achieved by combined solution, which contains 1.2g of picric acid in 30% solution of glacial acetic acid. By chloramine B application as blocking agent in form of 1% DMSO solution the dyes affinity for eviromental tissue is decreased. Tissues prepared in this way are treated with 0.5% solution of acidic sulfonic color Evans Blue (C.I.23860) in ratio 2:1. Lamellas are dark violet with light violet periphery. Obtained results speak in favor of high applicability of this method in light microscopy. In our opinion, this method can be recommended as one of methods for identification of elastic tissues.

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