[Thoracic endometriosis--the rare pathology in thoracic surgery].

Thoracic hematogenic endometriosis is a rare pathology. A clinical course hasn't pathognomic symptoms, because of it, the diagnosis is established due to histological study. The article presented two cases of female patients, who were suffering from thoracic endometriosis.

[To the question of reasonability of lung biopsy in primary spontaneous pneumothorax].

A biopsy of lung tissues was a conventional diagnostic method for detection of disseminated processes in the lung, which weren't diagnosed on preoperative stage. It was used during surgical anti-relapse treatment of spontaneous pneumothorax (SP). A retrospective analysis of the results of lung parenchyma biopsy was made in 143 patients, who have been operated for SP.

[Pulmonary histiocytosis from Langerhans cells as the problem of clinical morphology].

There are discussed modern views on one of the most difficult diagnosed forms of pulmonary dissemination. They relate to the dynamics of granulomatous changes in the lung tissue at the cellular and subcellular level as well as a characteristic of the immunophenotype of Langerhans cells. At present the frequency of this disease increases, which improves the responsibility for the timely diagnosis based on performing explicit clinical and morphological studies.

[Airway granular cell tumor].

The paper describes the clinical, morphological, and immunohistochemical characteristics of 13 granular cell tumors of the upper airway. These tumors are shown to have virtually the same histological and immunohistochemical features as granular cell tumors at another site. The histogenesis of these tumors is discussed.

[Primary bronchial melanoma].

The paper describes 4 cases of primary bronchial melanoma. The primacy of the tumor was established in all cases, by ruling out primary melanoma at another site (skin, nasal mucosae, and bowel), the presence of intraepithelial melanocytic proliferation in the areas of the metaplastic bronchial epithelium.