| meconium | <paediatrics> The first stools of the newborn. Typically thick, viscous, sticky and dark green. Usually sterile and odourless. (27 Sep 1997) |
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| meconium aspiration | Syndrome caused by sucking of thick meconium into the lungs, usually by term or post-term infants (often small for gestational age) either in utero or with first breath. The resultant small airway obstruction may produce respiratory distress, tachypnea, cyanosis, pneumothorax, and/or pneumomediastinum. (12 Dec 1998) |
| meconium aspiration syndrome | <radiology> Intra-uterine foetal distress most likely to be defecation of meconium, term and post-term neonates, not preemies, not kids of diabetic moms, diffuse HYPERaeration, pulmonary interstitial emphysema (PIE), pnuemomediastinum and non-tension ptx in 33%, patchy atelectasis and consolidation, lung disease usually resolves spontaneously, morbidity due to intrauterine cerebral anoxia (12 Dec 1998) |
| meconium blockage syndrome | <syndrome> Low intestinal obstruction in newborn infants resulting from blockage of meconium. (05 Mar 2000) |
| meconium ileus | <radiology> Obstructed bowel due to impacted, tenacious meconium, no air-fluid levels (probably due to adherent bowel contents) Differential diagnosis: ileal atresia, Hirschsprung disease, anal atresia associated with cystic fibrosis (12 Dec 1998) |
| meconium peritonitis | Peritonitis caused by intestinal perforation in the foetus or newborn; associated with congenital obstruction or fibrocystic disease of the pancreas. (05 Mar 2000) |
| meconium plug | <radiology> Functional colonic inertia, Diagnosis/Treatment: Gastrografin enema (Differential diagnosis: Hirschsprung disease, meconium ileus), F/U with another enema for confirmation, associated with maternal diabetes (12 Dec 1998) |
| amniotic corpuscle | One of a number of small ovoid or rounded, sometimes laminated, bodies resembling a grain of starch and found in nervous tissue, in the prostate, and in pulmonary alveoli; of little pathological significance, and apparently derived from degenerated cells or proteinaceous secretions. Synonym: amniotic corpuscle, amylaceous corpuscle, amyloid corpuscle, colloid corpuscle. (05 Mar 2000) |
| amyloid corpuscle | One of a number of small ovoid or rounded, sometimes laminated, bodies resembling a grain of starch and found in nervous tissue, in the prostate, and in pulmonary alveoli; of little pathological significance, and apparently derived from degenerated cells or proteinaceous secretions. Synonym: amniotic corpuscle, amylaceous corpuscle, amyloid corpuscle, colloid corpuscle. (05 Mar 2000) |
| axis corpuscle | Axile corpuscle, the central portion of a tactile corpuscle. (05 Mar 2000) |
| basal corpuscle | <cell biology> Structure found at the base of eukaryotic cilia and flagella consisting of a continuation of the nine outer sets of axonemal microtubules but with the addition of a C tubule to form a triplet (like the centriole). May be self replicating and serves as a nucleating centre for axonemal assembly. Anchored in the cytoplasm by rootlets. Synonymous with kinetosome. (18 Nov 1997) |
| Bizzozero's corpuscle | <haematology> A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for haemostasis by repairing breaches (small breaks) in the walls of blood vessels. Platelet _ granules contain lysosomal enzymes, dense granules contain ADP (a potent platelet aggregating factor) and serotonin (a vasoactive amine). They also release platelet-derived growth factor which presumably contributes to later repair processes by stimulating fibroblast proliferation. Synonym: thrombocytes. (09 Oct 1997) |
| blood corpuscle | <haematology> There are three main types of cell in the blood stream. The red cell, which carries oxygen, the white cell, which fights infections and the platelet, which helps prevent bleeding. The correct balance between each cell type must be maintained for the body to remain healthy. (13 Nov 1997) |
| bone corpuscle | <pathology> Osteoblast that is embedded in bony tissue and which is relatively inactive. (18 Nov 1997) |
| bridge corpuscle | <cell biology> Specialised cell junction characteristic of epithelia into which intermediate filaments (tonofilaments of cytokeratin) are inserted. The gap between plasma membranes is of the order of 25-30nm and the intercellular space has a medial band of electron dense material. Desmosomes are particularly conspicuous in tissues such as skin that have to withstand mechanical stress. Origin: Gr. Soma = body (18 Nov 1997) |