Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5670710.17816/kazmj56707Research ArticleTo the casuistry of rare forms of cutaneous hornsGordeevS. G.info@eco-vector.comSurgical clinic of the Kazan state Institute for Advanced Training of Physicians named after V.I. Lenin130819302687978002312202023122020Copyright © 2021, Gordeev S.G.2021<p style="text-align: justify;">Horny formations in humans in the form of cutaneous horns attracted the attention of observers by the strangeness and quirkiness of their picture even in ancient times. The first more or less reliable case of a cutaneous horn in humans, described in ancient literature, Lebert refers to the 13th century. To date, the literature has accumulated a significant number of cases of cutaneous horns with different localization, developmental pattern, structure and attitude to the underlying tissue. There is also a special tendency of the cutaneous horn to cancer metamorphosis (Darier).</p>Kazan Medical archiveКазанский медицинский архив