| actinomyces viscosus | <microbiology> A species of actinomyces found in the oral cavity of man and hamsters. It has been isolated from actinomycotic lesions in swine, cats, and dogs and has been identified as a causative agent of animal diseases. (12 Dec 1998) |
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| Mallory bodies | Large, poorly defined accumulations of eosinophilic material in the cytoplasm of damaged hepatic cells in certain forms of cirrhosis and marked fatty change especially due to alcoholism. Synonym: alcoholic hyalin, alcoholic hyaline bodies. (05 Mar 2000) |
| Mallory, Frank | <person> U.S. Pathologist, 1862-1941. See: Mallory bodies, picro-Mallory trichrome stain. See entries under stain. (05 Mar 2000) |
| Mallory, G Kenneth | <person> U.S. Pathologist, *1926. See: Mallory-Weiss lesion, Mallory-Weiss syndrome, Mallory-Weiss tear. (05 Mar 2000) |
| Mallory-Weiss lesion | Laceration of the gastric cardia, as seen in the Mallory-Weiss syndrome. Synonym: Mallory-Weiss tear. (05 Mar 2000) |
| mallory-weiss syndrome | <syndrome> Mucosal gastric tear, only 10% are purely oesophageal: most are at GE junction or proximal stomach, M greater than F, associated with retching, EtOH, massive haematemesis, abdominal pain, Diagnosis: endoscopy, Treatment: IA vasopressin see: oesophageal trauma (12 Dec 1998) |
| mallory-weiss tear | Lacerations in the oesophageal mucosa that occur close to ot at the junction of the oesophagus and the stomach. Mallory-Weiss tears occur as the result of forceful vomiting or coughing. Symptoms include vomiting blood. (27 Sep 1997) |
| Abbott's stain | <technique> Spores are stained blue with alkaline methylene blue; bodies of the bacilli become pink with eosin counterstain. (05 Mar 2000) |
| aceto-orcein stain | <technique> A stain used for chromosomes in air-dried or squashed cytologic material. (05 Mar 2000) |
| acid-fast stain | <technique> A staining technique used to determine the cell wall property of a microorganism. After stained with dye such as hot carbolfuschin, an acid-fast organism, (for example Mycobacterium species) will retain the colour in its cell wall after being washed with acid-alcohol. (13 Nov 1997) |
| acid stain | <technique> A dye in which the anion is the coloured component of the dye molecule, e.g., sodium eosinate (eosin). (05 Mar 2000) |
| Ag-AS stain | <technique> A stain for the acid protein component of nucleolar regions which are active or which were transcriptionally active in the preceding interphase; uses silver nitrate, ammoniacal silver, and formalin. Synonym: Ag-AS stain. (05 Mar 2000) |
| Albert's stain | <technique> A stain for diphtheria bacilli and their metachromatic granules; contains toluidine blue, methyl green, glacial acetic acid, alcohol, and distilled water. (05 Mar 2000) |
| Altmann's anilin-acid fuchsin stain | <technique> A mixture of picric acid, anilin, and acid fuchsin which stains mitochondria crimson against a yellow background. (05 Mar 2000) |
| auramine O fluorescent stain | <technique> A rapid and accurate technique for Mycobacterium tuberculosis, using auramine O-phenol and a methylene blue counterstain. (05 Mar 2000) |