[The effect of occupational factors on immunologic indices in workers in the petroleum-refining industry]. / Vliianie proizvodstvennykh faktorov na immunologicheskie pokazateli u rabochikh neftepererabatyvaiushchei promyshlennosti.

Examinations of 518 refinery workers have helped define the dermatologic morbidity structure. Immunologic examinations have been carried out in 82 workers. 70 of these have developed skin abnormalities (toxicoderma, eczema, itching, hyperkeratosis, vascular spots, abnormal pigmentation, etc.). The studies have revealed reduced levels of the cell-mediated immunity parameters: T-lymphocytes, T-theophylline-sensitive lymphocytes, and decreased functional activities thereof); this has been parallelled by activation of the humoral immunity.

[The characteristics of photodermatoses in workers of the Apsheron petroleum industry]. / Osobennosti fotodermatozov u rabochikh neftianoi promyshlennosti Apsherona.

Examinations of 518 refinery workers have revealed photodermatoses in 106. The disease ran a benign course: chronic or subacute one, eventuating in hyperpigmentation and vascular maculae in the workers exposed to oil and oil products. The patients suffering from occupational photodermatoses develop immunologic shifts, i.e. reduced levels of T-cells, T-suppressors, elevated counts of B-cells and of serum immunoglobulins G and M.

[Histogenesis of Kaposi's sarcoma]. / O gistogeneze sarkomy Kaposhi.

The origin of Kaposi's sarcoma from the endothelium and fibroblast-like cells of a vascular wall is proven on the basis of complex pathomorphological, immunomorphological, autoradiographic and electron microscopical investigation of tumour biopsies. Depending upon the predominating cell type of origin, the tumour in its different parts, may form the structures of either different variants of angiomas or fibrosarcomas.

[Pathomorphology of Kaposi's sarcoma]. / Patomorfologiia sarkomy Kaposhi.

Chaotic angiogenesis and permanent presence of spindle cells with a variable degree of nuclear atypia in the nodular aid tumourous foci represent important diagnostic criteria of Kaposi's sarcoma (KS). At early stages or, on the contrary, in the persistent lesions morphological picture is not sufficiently characteristic and the diagnosis cannot be established on the basis of histological examination only; evaluation of the clinical and morphological data and repeated biopsy are necessary in such cases. The degree of manifestation of a spindle-cell component and the degree of its anaplasia are not determining factors in the prognosis of disease.