(n.) Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the c/lum.
Example Sentences:
(1) Recognition of this deficiency in our knowledge spurred a belated explosion of research that began with an exploration of the fine structure of the mesothelium.
(2) A case of mucous metaplasia of mesothelium in an 80 year old woman is described.
(3) The other main sites of expression are the genital ridge, fetal gonad and mesothelium.
(4) We have previously shown that progesterone receptor (PR) is expressed in the mesothelium of the chick oviduct and ovary and in the smooth muscle cells of the oviduct and the bursa of Fabricius.
(5) We now describe, for the first time, that cells morphologically similar to uterine decidual cells found beneath the peritoneal mesothelium in inguinal hernia and in the cervical mucosa during normal pregnancy and in the mesenchymal tissue of the Fallopian tubes and ovaries at term react with the monoclonal antibody for IGFBP-1 equally to endometrial decidual cells.
(6) Adenomatoid change or squamous metaplasia of the mesothelium occurs in one-third of cases.
(7) Animals had poor early weight gain, and gross necropsy examination revealed intestinal adhesions and a mesothelium that was sclerotically thickened.
(8) They arise from the tissues of the broad ligament, predominantly from mesothelium covering the peritoneum but also from paramesonephric and mesonephric remnants.
(9) The mesothelium is a target of the toxic and carcinogenic effects of asbestos fibers.
(10) The first mesothelial mitoses appeared: in the first series (I) of experiments - in 24 h, in the second series (II) of experiments - 21 h. Further, proliferation of the mesothelium appeared in different parts of the tissue with various intencity and was of wavy character.
(11) Peritoneal mesothelium was exposed for 2-60 min to solutions of horseradish peroxidase by incubation in vitro, or after intraperitoneal injection in vivo.
(12) Rat pleural mesothelium was studied 16 to 22 months after intrapleural inoculation of chrysotile-asbestos.
(13) In the present study, immunohistochemical analysis of normal rabbit, dog, and monkey tissues using monoclonal antibody OC125, revealed that in these animals positive staining for CA125 is found in all tissues that produce this mucin-like glycoprotein in man, i.e., the peritoneal and pleural mesothelium, the different Müllerian-duct-derived epithelia of the female genital tract, and the epithelium of trachea, bronchi, bronchioli, and mucoserous respiratory glands; CA125 was also detected in some ductal and acinar cells of the dog mammary gland.
(14) The study of the morphologic features of mesothelial cells in effusions in experimental asbestos-induced mesotheliomas may contribute to the understanding of the neoplastic transformation of the mesothelium.
(15) 3) Between 9 and 12 days of age U-shaped folds of the bursal mesothelium began to invade the connective tissue of the bursa.
(16) In the absence of a primary tumor elsewhere, we considered this tumor to be primary in the spleen, and it was presumed that the tumor arose either from invaginated capsular mesothelium of the spleen or from heterotopic pancreatic or enteric tissue within the spleen.
(17) Keratin 7 was found to occur in the columnar and glandular epithelium of the lung, cervix, breast, in bile ducts, collecting ducts in the kidney and in mesothelium, but to be absent from gastrointestinal epithelium, hepatocytes, proximal and distal tubules of the kidney and myoepithelium.
(18) When studying total pleural mesothelium films in rats after intrapleural injection of chrysotile the pathological regeneration of the mesothelium is observed.
(19) The fetal tracheal and bronchial epithelium, tracheal glands, and pleural mesothelium were positive for CA 125.
(20) These results indicate that B. fragilis adheres to rat peritoneal mesothelium better than unencapsulated species and suggests that the capsular polysaccharide of B. fragilis plays some role in this increased adherence.
Pleura
Definition:
(n.) pl. of Pleuron.
(n. fem.) The smooth serous membrane which closely covers the lungs and the adjacent surfaces of the thorax; the pleural membrane.
(n. fem.) The closed sac formed by the pleural membrane about each lung, or the fold of membrane connecting each lung with the body wall.
(n. fem.) Same as Pleuron.
(pl. ) of Pleuron
Example Sentences:
(1) Additionally, several small vessels (rami pleurales pulmonales) originated from the esophageal branch (ramus esophagea) of the bronchoesophageal artery, traversed the pulmonary ligaments, and supplied the visceral pleura.
(2) A wide window setting permits both pleura and lung parenchyma to be examined simultaneously.
(3) Presence or absence of lung cancer and the presence and severity of silicosis of the parenchyma, pleura, and hilar glands were documented from necropsy reports.
(4) CT is superior to conventional radiography in evaluating interstitial pulmonary changes, particularly of the pleura and the lung parenchyma.
(5) On high-resolution CT scans in the normal subjects, a 1-2-mm-thick line of soft-tissue attenuation at the point of contact between lung and chest wall represents the visceral and parietal pleura, pleural contents, endothoracic fascia, and innermost intercostal muscle.
(6) The figures for cancer of the lungs and pleura combined were 17 observed versus 3.7 expected.
(7) The sites of ENM included lung and thoracic lymph nodes (2), pleura and peritoneum (2), and liver (1).
(8) There were 54 patients (83.1%) with massive pleural effusion with or without other pathology, six (9.2%) with tumors, two (3.1%) with organized fibrothorax, two (3.1%) with consolidation or atelectasis and one (1.5%) with pseudocyst of the pleura in the sonographic diagnosis.
(9) Nearly half of the patients with lymphoma had lymphocytosis of the pleural fluid, but neither this finding nor the lymphocytic pleuritis noted on biopsy was diagnostic of lymphomatous involvement of the pleura.
(10) In rabbits with adjuvant induced pleuritis, the visceral pleura, but not the costal pleura, showed mushroom-like projections on the pleural surface which were composed of a fibrin mass mixed with phagocytotic macrophages and covered by proliferative mesothelial cells.
(11) Pneumothorax could be induced if the needle was at an acute angle with the surface of the pleura at the time of puncture.
(12) It is then suggested that this method bloodless drainage may be successfully carried out in cases of accidental lesion of the oesophagus without perforation of parietal pleura, caused by peroral endoscopic manoeuvres or dilatation of oesophageal anatomical and functional strictures.
(13) Decortication, that is excision of both the visceral and parietal pleura, has become a rarely performed operation.
(14) External thoracic endometriosis is associated with implantation of endometrial tissue into lung, pleura, bronchial system, and diaphragm.
(15) Starting with a needle puncture and biopsy, the medical investigation of the pleura has been enriched by thoracoscopy which enables visualisation of not only the parietal and visceral pleura and the lung but also the mediastinum and the pericardium.
(16) At necropsy undifferentiated tumour was found in the pleura, liver, pelvic peritoneum, and transplanted kidney.
(17) The stimulating electrode was inserted around a segment of intrathoracic phrenic nerve isolated with pleura and perineural blood supply.
(18) Among 627 thoracoscopies, lesions induced by exposure to asbestos were found in 9.9% (50 malignant mesotheliomas of the pleura, 10 pleural hyalinoses, 2 asbestos pleurisies).
(19) The presence of in vivo fixation of ANA in the pleura may be of etiologic and diagnostic significance in procainamide-induced SLE syndrome.
(20) In five patients there was either no clear abnormality in the extrapleural space or an insufficient amount of fat to permit detection of an abnormality, or the parietal pleura could not be distinguished from the pleural fluid because intravenous contrast medium was not given.