Bone structure of the temporo-mandibular joint in the individuals aged 18-25.

Osteohistometric studies were performed in 15 female and 15 male cadavers aged 18-25. Condyloid process and right and left acetabulum of the temporo-mandibular joint have been studied. Density has been investigated using monitor screen linked with microscope (magnification 80x). Density in the spongy part of the condyloid process was 26.67-26.77%; in the subchondrial layer--72.13-72.72%, and in the acetabular wall 75.03-75.91%. Microscopic structure of the bones of the temporo-mandibular joint revealed no differences when compared with images of compact and cancellous bone shown in the histology textbooks. Sex and the side of the body had no influence on microscopic image and proportional bone density. Isles of chondrocytes in the trabeculae of the spongy structure of the condyloid process were found in 4 cases and isles of the condensed bone resembling the compact pattern in 7 cases.

Carcinosarcoma of the lung. Report of three cases.

This article presents three cases of carcinosarcoma of the lung which is considered to be a rare neoplasm. The authors describe supposed etiology, clinical symptoms, preoperative diagnostic difficulties, surgical interventions performed, postoperative course and follow-up. The role of modern histopathological techniques like use of monoclonal antibodies reaction against keratin, vimentin and neurofilaments in differential diagnosis is emphasized. Short review of other authors reports is presented.

[Churg-Strauss syndrome: two cases histories]. / Zespól Churga-Straussa: opis dwóch przypadków.

Two cases of Churg-Strauss syndrome with severe polyneuropathy have been diagnosed according to clinical and histopathologic criteria. Perforation of small intestine, successfully treated with surgery, was observed in one of two cases. The resected part of gut presented specific histologic picture of Churg-Strauss syndrome.

The development of cartilaginous wrist in human fetuses.

Wrist bones were studied in fetuses aged 9 to 24 weeks. In fetuses aged 9 weeks the primordia of all wrist bones are present. The joint cavities begins to form early in the 3rd month.

Salbupart effect on rabbit heart and brain.

In connection with the widespread use of the product Salbupart POLFA in the treatment of imminent premature labour the effect of this medicament on rabbit fetuses was studied. In all, 29 fetuses were examined, particularly with histological examination of the heart and the central nervous system. No harmful effects of the medicament on these organs was found. In the fetal central nervous system Salbupart produced more intense staining of myelin sheaths by Heidenhain's method which may suggest earlier maturation of the brain.

Effect of constant magnetic field on the liver of guinea pig. Electron microscopic studies.

Twenty guinea pigs were exposed 1 hour daily, for 3 to 7 weeks to constant magnetic field (CMF), the induction of which was 0.005 T, and 0.3 T. Hepatocytes were examined in semithin sections with light microscope and TEM. The negative photographic plates of the TEM were analyzed and measured with densitometer. It was shown that CMF of the induction 0.005 T and 0.3 T exhibited structural changes in hepatocytes, primarily in mitochondria.

Vascular changes and inflammatory infiltrations in primary lung cancers.

Twenty one surgical specimens of lung cancer were studied. Microangiography showed that the vascularization of the tumours did not depend either on the size or histology of carcinoma. Abundant vascularity of tumours was associated with the degree development of connective tissue--vascular stroma. Poor vascularity was linked with neoplastic blockade of vessels and the presence of necrosis. Besides the cancer tumour the vascular changes existed in all parts of the lung, but they were expressed most profusely in the surroundings of neoplastic infiltrate. The range of histological vascular changes was as follows: elastosis, inflammation, lumen obliteration (proliferation of intima), wall thickening (arterialization of veins), oedema, hyalinization, plasmorrhagia, fibrosis (scarring), presence of acid GAG, thrombosis. The most striking vascular changes were connected with hilar and intralobar localization of the tumour, the mildest with subpleural position. The intensity of vascular changes depended on the size of tumour and existence of necrosis. The extent of necrosis and the histological type of neoplasm exerted no essential effects in this respect. Inflammatory cell infiltration appeared abundantly in the direct vicinity of the tumour in adenocarcinoma, with hilar localization and displayed proportional dependence on the size of tumour and the extent of necrosis, but the tumours, whose diameter exceeded 6 cm, failed to have any effect on the intensity of the inflammatory cell reactions.

[A case of mitochondrial enzymopathy]. / Przypadek enzymopatii mitochondrialnej.

A case of mitochondrial enzymopathy, called also ophthalmoplegia plus, was observed in a 31-year-old man. Histoenzymatic investigations demonstrated in the myocytes decreased and irregularity of reactions for succinic dehydrogenase, tetrazole reductase and mitochondrial ATPase. In electron microscopy paracrystalline structures, lamellar bodies and concentrically condensed cristae were seen in the mitochondria, and increased glycogen stores outside the mitochondria.