[Computer program for the analysis of clinical diagnostic errors based on a pathology database].

The program is tested on the material of 882 autopsy protocols. All parts of clinical and pathology diagnoses were included into the generation of the data base. Automatized analysis allowed to assess main characteristics of the patient material with a histogram demonstration of group statistics according to all positions considered as well as to obtain information on the influence of more complex pathology diagnosis of a main disease, sex and age on the frequency of clinical diagnosis mistakes.

[Risk of lung cancer in patients followed-up at tuberculosis dispensaries].

Within the last decade, the incidence of lung cancer in persons under dispensary observation and in particular in persons of groups III and VII of dispensary registration has been increasing annually. The increase was especially marked among male, elderly and senile persons exposed to harmful factors. Such persons should be examined in tuberculosis dispensaries at least twice a year.

[A case of lepromatous leprosy].

The paper describes a case of lepromatous lepra diagnosed from the skin biopsy specimen taken in a 23-year-old male patient. It provides histologic signs that are beneficial for correct diagnosis. Emphasis is placed upon the necessity for staining by the Ziehl-Neelsen method to detect microorganisms in infiltrative and granulomatous skin lesions.

[Aspects of pathogenesis of tumor-like and tumor processes of viral etiology in secondary immunodeficient states (facts and hypotheses)].

The authors analyse the literature data and propose original assumptions on the role of deranged cellular alterations and persistent carriage of viruses in secondary immunodeficiencies. These are suggested to promote the onset of tumor or tumor-like growth by means of compensatory mechanisms of proliferation enhanced in the conditions of local disorder of immunocompetent cells cooperation.