| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
|---|---|
| mA, ma | milliampere; meter-angle |
| MAR | main admissions room; marasmus; marrow; maximal aggregation ratio; medication administration record;... |
| MAS | magic angle spinning; Manifest Anxiety Scale; maximum average score; McCune-Albright syndrome; mecon... |
| NAG | N-acetyl-D-glucosaminidase; narrow-angle glaucoma; nonagglutinable |
| cavity line angle | In dentistry, the angle formed by two walls of a cavity, e.g., a tooth cavity, meeting along a line. (05 Mar 2000) |
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| Virchow-Holder angle | An angle formed by the meeting of a line drawn from the middle of the nasofrontal suture to the base of the anterior nasal spine with a line drawn from this last point to the centre of the external auditory meatus. Synonym: Virchow-Holder angle. (05 Mar 2000) |
| Virchow's angle | An angle formed by the meeting of a line drawn from the middle of the nasofrontal suture to the base of the anterior nasal spine with a line drawn from this last point to the centre of the external auditory meatus. Synonym: Virchow-Holder angle. (05 Mar 2000) |
| cavosurface angle | The angle formed by the junction of a cavity wall and the surface of the tooth. (05 Mar 2000) |
| medial angle of eye | The angle formed by the union of the upper and lower eyelids medially. Synonym: angulus oculi medialis, angulus oculi nasalis, internal canthus, medial canthus. (05 Mar 2000) |
| visual angle | The angle formed at the retina by the meeting of lines drawn from the periphery of the object seen. (05 Mar 2000) |
| pectinate ligaments of iridocorneal angle | The network of fibres (pectinate ligaments) at the iridocorneal angle between the anterior chamber of the eye and the venous sinus of the sclera; it contains spaces between the fibres that are involved in drainage of the aqueous humor, and is composed of two portions: the corneoscleral part, the part attached to the sclera, and the uveal part, the part attached to the iris. Synonym: reticulum trabeculare sclerae, Gerlach's valvula, Hueck's ligament, ligamentum annulare bulbi, pectinate ligaments of iridocorneal angle, pillar of iris, trabecular meshwork, trabecular network, trabecular zone. (05 Mar 2000) |
| Vogt's angle | A craniometric angle formed by the nasobasilar and alveolonasal lines. Origin: K. Vogt (05 Mar 2000) |
| cephalic angle | One of several angle's formed by the intersection of two lines passing through certain points of the face or cranium. (05 Mar 2000) |
| cephalomedullary angle | The angle made by the junction of the cerebrum and the brain stem. (05 Mar 2000) |
| pelvivertebral angle | The angle made by the pelvis as defined by the plane of the superior pelvic aperture with the general axis of the trunk or vertebral column. See: inclination of pelvis. (05 Mar 2000) |
| cerebellopontile angle | <anatomy, oncology> The angle between the cerebellum and the pons, a common site for the growth of acoustic neuromas. (16 Dec 1997) |
| cerebellopontine angle | <anatomy, oncology> The angle between the cerebellum and the pons, a common site for the growth of acoustic neuromas. (16 Dec 1997) |
| cerebellopontine angle syndrome | <syndrome> A syndrome due most commonly to an acoustic tumour in the region between the cerebellum and pons, and marked by ataxia, nystagmus, tinnitus, deafness, disturbances of labyrinth function, and involvement of any of the cranial nerves, fifth, sixth, seventh, ninth, or tenth. (05 Mar 2000) |
| cerebellopontine angle tumour | This is a benign tumour of the 8th cranial nerve that affects approximately 1 out of 100,000 people. This tumour arises from the myelin forming Schwann cells that coat the 8th cranial nerve (acoustic nerve). Clinical presentation usually includes hearing deficit. Diagnosis can be made with auditory evoked potentials and/or MRI scanning of the brain. Vertigo and tinnitus may be associated symptoms. Surgical removal of this tumour involves dissection, cautery and obliteration with laser. Causes: acoustic neuroma (90%), meningioma (7%), epidermoid (3%), uncommon: metastasis, trigeminal neuroma, arachnoid cyst, aneurysm, vertebro-basilar dolichoectasia (12 Dec 1998) |