[Trauma and tumor]. / Travma i opukhol'

The analysis of the literature data and the author's own findings justifies the conclusion that a single mechanical trauma may be of importance in the development of tumours of various genesis, as well as in the development and localization of metastastatic foci.

[The international classification of bone tumors and some remarks concerning it]. / Mezhdunarodmaia klassifidatsiia opukholei kostei i nekotorye zamechaniia k nei

The international histological classification of bones has been issued by the World Health Organization in 1972. The article discusses merits of the classification, its importance in unification of the nomenclature on bone tumours, in studies of their nature and histogenesis, etc. At the same time some drawbacks of the classification are noted: lack of accuracy with respect to the nomenclature and grouping of the so-called giant-cell tumours of bones, with respect to the group of tumours of the "bone marrow", the group of mesenchymomas, etc. The author makes his critical notes on the basis of the experience gained by his co-workers and by himself.