| mucocutaneous muscle | <anatomy> The "sucking muscle," a labial muscle formed by sagittal fibres running from the skin to the mucous membrane. Synonym: Aeby's muscle, Bovero's muscle, compressor muscle of lips, Klein's muscle, Krause's muscle, mucocutaneous muscle, musculus cutaneomucosus. (05 Mar 2000) |
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| mucocyst | <microbiology> Small membrane bounded vesicular organelle in pellicle of ciliate protozoans that will discharge a mucus like secretion. (18 Nov 1997) |
| mucoenteritis | 1. Inflammation of the intestinal mucous membrane. Synonym: mucomembranous enteritis. (05 Mar 2000) |
| mucoepidermoid | Denoting a mixture of mucus-secreting and epithelial cells, as in mucoepidermoid carcinoma. (05 Mar 2000) |
| mucoepidermoid carcinoma | <tumour> Most commonly a salivary gland carcinoma of low grade malignancy in children, but with variable malignancy in adults; composed of mucous, epidermoid, and intermediate cells, with mucous cells abundant only in low grade carcinoma's; recurrence is frequent, and high grade carcinoma's metastasize to cervical nodes. Synonym: mucoepidermoid tumour. (05 Mar 2000) |
| mucoepidermoid tumour | A malignant epithelial tumour of glandular tissue, especially the salivary glands, characterised by acini with mucus-producing cells and by the presence of malignant squamous elements. most mucoepidermoid tumours are low-grade lesions readily cured by adequate excision. They may appear in any age group. They grow slowly. If high-grade, they behave aggressively, widely infiltrating the salivary gland and producing lymph node and distant metastases. (12 Dec 1998) |
| mucoepithelial dysplasia | An epithelial cell dishesive disease characterised by red, periorificial mucosal lesions of oral, nasal, vaginal, urethral, anal, bladder, and conjunctival mucosa, with cataracts, follicular keratosis, non-scarring alopecia, frequent pulmonary infections, pneumothorax, and sometimes cor pulmonale; autosomal dominant inheritance. (05 Mar 2000) |
| mucoglobulin | A glycoprotein or mucoprotein in which the protein component is a globulin. (05 Mar 2000) |
| mucoid | Resembling mucus. (27 Sep 1997) |
| mucoid adenocarcinoma | <tumour> Sometimes applied to mucinous carcinoma, or adenocarcinoma containing mucin secreting neoplastic cells. (05 Mar 2000) |
| mucoid colony | A colony showing viscous or sticky growth typical of an organism producing large quantities of a carbohydrate capsule. (05 Mar 2000) |
| mucoid degeneration | A conversion of any of the connective tissues into a gelatinous or mucoid substance. Synonym: myxoid degeneration, myxomatous degeneration, myxomatosis. (05 Mar 2000) |
| mucoid impaction of bronchus | Plugging of the lumen of bronchi due to thickened mucus, interfering with ventilation of corresponding lung segments and leading to characteristic clustered linear and grape-like radiologic densities and occasionally atelectasis and pneumonia; characteristically seen in cystic fibrosis but it can occur in a variety of disease states. (05 Mar 2000) |
| mucoid medial degeneration | Loss of elastic and muscle fibres in the aortic media, with accumulation of mucopolysaccharide, sometimes in cystlike spaces between the fibres; a disease of unknown cause, which may be inherited and which predisposes to dissecting aneurysms. Synonym: Erdheim disease, medionecrosis aortae idiopathica cystica, medionecrosis of the aorta, mucoid medial degeneration. (05 Mar 2000) |
| mucolipidosis | <biochemistry> A group of inherited metabolic diseases characterised by the accumulation of excessive amounts of acid mucopolysaccharides, sphingolipids, and/or glycolipids in visceral and mesenchymal cells. Abnormal amounts of sphingolipids or glycolipids are present in neural tissue. Mental retardation and skeletal changes are common. (12 Dec 1998) |