[Small pelvic MRI on "Ellipse" low-adz tomograph made in Russia]. / MR-tomografiia organov malogo taza an otechestvennom nizkoteslovom tomografe "Ellips".

The paper presents the authors' experience in using small pelvic MRI on an Ellipse low-field apparatus made in Russia. A total of 74 patients were examined. Abnormal formations in the small pelvic organs were visualized in 72 patients. The potentialities and limitations of MRI in visualizing small pelvic organs and their pathology are shown. The technique is compared with CT and ultrasound study.

[Oncogenic osteomalacia: its pathogenesis, clinical picture and treatment]. / Onkogennaia osteomaliatsiia: patogenez, klinika, lechenie.

A female of 53 and male of 35 complained of myasthenia and pain in the bones. Biochemically, they had severe hypophosphatemia secondary to a sharp decline in tubular reabsorption of phosphates. X-ray showed tumor of bone tissue. The patients were diagnosed to have oncogenic osteomalacia. Literature data on pathogenesis, clinical features and treatment of this rare disease are reviewed.

[Magnetic resonance tomography in the diagnosis of intramedullary tumors]. / Magnitno-resonansnaia tomografiia v diagnostike intramedulliarnykh opukholei.

The data of magnetic resonance imaging in 23 patients is hardly sufficient to characterize the histologic types of intramedullary tumors. However, the presence of cystous type of structure of intramedullary tumors on magnetic tomograms with nonhomogeneous (iso- or hypointensive) signal on T1-suspended tomograms or of hyper- or hypointensive signal on T2-suspended ones is to a great measure indicative of infiltration and diffuse growth of a tumor. A solid structure of intramedullary tumor with homogenous hyperintensive signals on both T1- and T2-dependent tomograms is more frequently indicative of a slowly growing tumor not involving the medulla, e.g. ependioma.

[Pathological restructuring of compact bone tissue as evidenced by detailed x-rays of hands]. / Patologicheskaia perestroika kompaktnoi kostnoi tkani po dannym vysokodetal'noi rentgenografii kistei.

The author analyzes precise roentgenograms of the hands in more than 250 patients with diseases of the skeleton, resultant from dysmetabolism. He emphasizes the similarity between juxta-endosteal and intracortical resorption of compact bone tissue at some sites of the compact matter. Three degrees of intracortical resorption are distinguished and its relationship to the blood parathyroid hormone level revealed. Both the intracortical and the juxta-endosteal resorption reflect the accelerated rate of bone tissue restructuring along the Haversian surfaces. The markedness of these resorption types depends on the specific features of the productive phase of restructuring as well. Intracortical resorption reflects the reversible and the juxta-endosteal resorption the irreversible bone tissue loss. The latter resorption type is associated with accelerated loss of compact matter. Laminar stratification and spongious degeneration of the compact matter in the juxta-endosteal zone is the most marked not in osteoporosis, but in osteomalacia and hyperparathyroid osteodystrophy. Intracortical resorption is valuable for the differential diagnosis of osteomalacia and hyperparathyroid osteodystrophy with osteoporosis in subjects aged under 50; in older persons irreversible loss of compact matter predominates and osteoporosis of the peripheral skeleton is therefore particularly marked.

[Irreversible loss of the substantia compacta in metabolic bone diseases based on roentgenogrammetric data]. / Neobratimaia poteria kompaktnogo veshchestva pri metabolicheskikh zabolevaniiakh skeleta po dannym rentgenogrammetrii.

A study was made of gram roentgenographic indices of the compact substance (CS) in metabolic skeletal diseases: of the cortical layer summary thickness (CST) and a cortical area (CA) of the metacarpal bone II in 310 patients and the femoral cortical index (FCI) in 184 patients. Three components in CS loss were singled out: involution, metabolic and inert. Irreversibility of endocortical loss of the osseous tissue was shown and interpreted as fast developing involution osteoporosis. CST is a more sensitive index of CS loss than FCI though the combination of both indices provides more information on CS loss.

[Clinico-roentgenologic characteristics of postoperative osteitis of the pubic bones]. / Kliniko-rentgenologicheskaia kharakteristika posleoperationnogo osteita lobkovykh kostei.

The paper is concerned with clinicoroentgenological analysis of postoperative osteitis of the pubic bones (OPB) in 29 patients with urological diseases. The development of OPB follows operative complications, mainly of pyoinflammatory type. Clinically OPB develops as a pyoinfectious process. X-ray signs present a picture of inert osteomyelitis of the pelvic bones, caused by low virulent urinary infection. Its characteristic feature is superficial spreading of osseous destruction to a large extent with the affection of the adjacent of the pelvic joints. The probable routes of infection dissemination are venous (in injury of the pelvic plexus veins) and by continuity (as a result of urinary pelvic cellulitis).