[Testicular involvement in pediatric lymphoid tumors: a review of the literature and a series of clinical observation].

Lymphoid tumors with testicular involvement in childhood are rare and heterogeneous. The disease may manifest with uni- or bilateral scrotal enlargement. Comprehensive examination includes evaluation of all lymph nodes involvement, as well as ultrasound examination, magnetic resonance imaging and positron emission tomography.

[Complex radiodiagnostics of non-Hodgkin's thoracic or abdominal lymphoma in children].

The clinical manifestations of non-Hodgkin's lymphoma (NHL)-associated lesions of thoracic or abdominal organs and tissues, and the results of application of radiodiagnostic techniques in 414 children with the disease, were analyzed. The results of the analysis of radiological and ultrasonographic manifestations of thoracic and abdominal lesions in children with NHL make it possible to perform more effective early diagnostics of the disease in wide healthcare practice. Also, these results confirm the mandatory character of the general principle of pediatric tumor diagnosis, i.

Cytogenetic study of bone marrow and blood cells in patients with non-Hodgkin lymphoma before and after antitumor therapy.

Non-clonal and clonal abnormal cells (hypodiploid, polyploid, and with chromosome aberrations) were detected by the G-method in the bone marrow and blood of the majority of patients with non-Hodgkin lymphomas before therapy. The manifestation of these abnormalities changed individually after treatment. The most incident were clones -22, del(1)(q42-43), del(2)(q-33-35), del(3)(q27), 4q-, and del(6q).

[Thermocompensatory reactions of rabbits in response to microwave irradiation at different environmental temperatures].

Thermogenic effectiveness of electromagnetic irradiation (EMI) of UHF range (7 GHz) in the dependence on intensity (10-100 mW/cm2) and environmental temperature was studied in experiments with rabbits. Synergistic interaction of EMI and high ambient temperature was established. The existence of optimal EMI and high ambient temperature was established.

[Experimental estimation of thermogenic levels of acute microwave exposure for different animal species].

In experiments on laboratory animals it was found the different patterns of reactions in response to acute thermogenic 7 GHz CW microwave exposures. The effects were related specifically to the intensity of the field. SAR equal 0.

[Ultrasonography in the comprehensive diagnosis and evaluation of treatment effectiveness in retroperitoneal neuroblastoma in children].

Neuroblastoma and ganglioneuroblastoma of adrenal (17) and extra-organ (60) origin and retroperitoneal extra-organ neoplasia (18), infrequent in childhood, were identified in 109 children referred to the Institute's Clinic with diagnosis of retroperitoneal tumor. Ultrasound characteristics of retroperitoneal tumors of the sympathetic nervous system and predictive value of ultrasound for involvement of adjacent organs and vessels were defined and classified. Similar criteria for differential diagnosis between retroperitoneal neuro- and ganglioblastoma and rare pediatric retroperitoneal tumors were worked out.

[Experimental assessment of adaptive possibilities after chronic prenatal exposure to gamma irradiation at various absorbed doses].

The purpose of the investigation is the study of dose-response relationship at the antenatal exposure of low level ionizing radiation (137Cs, 1.0-1.25; 1.