| brain sand | Small calcareous concretions in the stroma of the pineal and other central nervous system tissues. Synonym: acervulus, brain sand, psammoma bodies. (05 Mar 2000) |
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| brain-specific kinase | <enzyme> Expressed specifically in brain; member of the eph/elk receptor-like kinase family; mw 105 kD; may represent murine homolog of chicken cek7 receptor-like kinase; amino acid sequence given in first source Registry number: EC 2.7.1.- Synonym: bsk tyrosine kinase (26 Jun 1999) |
| Brain's reflex | Extension of the arm of a hemiplegic patient when turned prone as if on all fours. Synonym: Brain's reflex. (05 Mar 2000) |
| brain tissue transplantation | Transference of brain tissue, either from a foetus or from a born individual, between individuals of the same species or between individuals of different species. (12 Dec 1998) |
| brain tumour | <oncology, tumour> May be subdivided into primary brain tumours and the more common, secondary brain tumours. Primary brain tumours (for example astrocytoma, craniopharyngioma, glioma, ependymoma, neuroglioma, oligodendroglioma, glioblastoma multiforme, meningioma, medulloblastoma) arise from the uncontrolled proliferation of cells within the brain. Secondary brain tumours occur from the spread of cancer into the brain from a distant cancerous organ (metastasis). Common symptoms of a brain tumour include headache, nausea, vomiting, seizures, change in mentation, neurologic symptoms and loss of memory. (17 Dec 1997) |
| brain tumour calcifications | <radiology> Oligodendroglioma (90%), craniopharyngioma (70%), ependymoma (60%), choroid plexus papilloma (25%), low-grade astrocytoma (20%), meningioma (10%), others, dermoid, pineal tumours, lipoma, caveat: a calcified intraparenchymal tumour is most likely to be an astrocytoma due to higher overall incidence relative to other tumours mentioned above. Source: Duke review manual (12 Dec 1998) |
| brain tumours | Can be malignant or benign and can occur at any age. Primary brain tumours initially form in the brain tissue. Secondary brain tumours are cancers that have spread to the brain tissue (metastasized) from tissue elsewhere in the body. (12 Dec 1998) |
| Brain, W Russell Lord | <person> English physician, 1895-1966. See: Brain's reflex. (05 Mar 2000) |
| bulb of posterior horn of lateral ventricle of brain | Bulb of posterior horn of lateral ventricle of the brain; a curved elevation on the inner wall of the posterior horn produced by the fibres of the forceps major of the corpus callosum as they bend backward into the occipital lobe. Synonym: bulb of posterior horn of lateral ventricle of brain. (05 Mar 2000) |
| cancer, brain | Cancer of the central information processing centre of the body. Tumours in the brain can be malignant or benign and can occur at any age. Primary brain tumours initially form in the brain tissue. Secondary brain tumours are cancers that have spread to the brain tissue (metastasized) from elsewhere in the body. (12 Dec 1998) |
| visceral brain | Collective term denoting a heterogeneous array of brain structures at or near the edge (limbus) of the medial wall of the cerebral hemisphere, in particular the hippocampus, amygdala, and fornicate gyrus; the term is often used so as to include also the interconnections of these structures, as well as their connections with the septal area, the hypothalamus, and a medial zone of mesencephalic tegmentum. By way of the latter connections, the limbic system exerts an important influence upon the endocrine and autonomic motor system's; its functions also appear to affect motivational and mood states. Synonym: visceral brain. (05 Mar 2000) |
| medullary arteries of brain | Branches of the cortical artery's which penetrate to and supply the white matter of the cerebrum. (05 Mar 2000) |
| respirator brain | A swollen and congested brain with necrotic and autolytic changes seen in patients who have been on a respirator. (05 Mar 2000) |
| ring lesions in brain | <radiology> Hypodense, peripherally enhancing lesions, ** mnemonic: MAGIC DR., metastasis, abscess, glioma, granuloma, infarct, contusion, demyelination, resolving haematoma (12 Dec 1998) |
| metastatic brain tumour | A malignant growth in brain tissue that has spread from another primary cancer site (for example breast cancer, malignant melanoma, lung cancer) in the body. (27 Sep 1997) |