| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
|---|---|
| OD | Doctor of Optometry; obtained absorbance; occipital dysplasia; occupational dermatitis; occupational... |
| DM | defined medium; dermatomyositis; Descemet's membrane; dextromaltose; dextromethorphan; diabetes mell... |
| mets | metastases |
| MO | macroorchidism; manually operated; Master of Obstetrics; Master of Osteopathy; medical officer; mesi... |
| foot-drop | Paralysis or weakness of the dorsiflexor muscles of the foot, as a consequence of which the foot falls, the toes dragging on the ground in walking; many causes, both central and peripheral. (05 Mar 2000) |
|---|---|
| bone metastases | <radiology> Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . 98%, False negatives: multiple myeloma, thyroid carcinoma, small, purely lytic lesions, oat cell carcinoma Specificity . . . . . . . . . . . . . . . . . . . . . . . . High, False positives: Paget's disease, arthritis, fibrous dysplasia, infection, trauma, new or old REF: MacNeil BJ. Value of bone scanning in neoplastic disease. Semin Nucl Med 14:277, 1984. (12 Dec 1998) |
| bone metastases in kids | <radiology> Rhabdomyosarcoma, neuroblastoma, histiocytosis X Note: Wilms tumour goes to lung, not bone (12 Dec 1998) |
| bone scan: falsely negative metastases | <radiology> Anaplastic tumours, reticulum cell sarcoma, renal cell carcinoma, thyroid carcinoma, histiocytosis, neuroblastoma, multiple myeloma (positive scan usually due to recent or impending fracture) (12 Dec 1998) |
| brain metastases | <oncology, radiology> 10% of intracranial mass lesions are metastasis, 10-38% of patients with systemic cancer have brain metastasis: adults: lung, breast, GU tract, colon/rectum, melanoma, sinuses. children: neuroblastoma, embryonal rhabdomyosarcoma, Wilms tumour. Location: most in middle cerebral artery distribution at the cortex, 20% in posterior fossa. See also: haemorrhagic metastasis. (08 Mar 2000) |
| calcified liver metastases | <radiology> Mucinous carcinoma of GI tract (colon, rectum, stomach), endocrine pancreatic carcinoma, leiomyosarcoma, osteosarcoma, malignant melanoma, papillary serous ovarian cystadenocarcinoma, lymphoma, pleural mesothelioma, neuroblastoma, breast carcinoma, medullary thyroid carcinoma, renal cell carcinoma, lung carcinoma, testicular carcinoma see: liver metastases (12 Dec 1998) |
| chest metastases with pneumothorax | <radiology> Common with metastatic sarcomas: osteosarcoma, rhabdomyosarcoma (12 Dec 1998) |
| metastases | <oncology> Cancer that started from cancer cells from another part of the body. For example: cancer that starts in the breast can spread to the lymph nodes and then be spread throughout the body. (16 Dec 1997) |
| metastases to the liver | <oncology> The spread of cancerous tumours from a distant organ to the liver. Due to the livers tremendous blood and lymphatic supply it is a frequent site for metastatic cancer. Cancers which commonly metastasize to the liver include colon cancer, breast cancer, neuroblastoma, lung cancer and Hodgkin's disease. (27 Sep 1997) |
| haemorrhagic brain metastases | <radiology> Intratumoural haemorrhage most likely to be high-density, well circumscribed mass, melanoma, thyroid carcinoma, renal carcinoma, choriocarcinoma (12 Dec 1998) |
| cystic liver metastases | <radiology> Mucinous ovarian carcinoma, colonic carcinoma, sarcoma, melanoma, lung carcinoma, carcinoid tumour see: liver metastases (12 Dec 1998) |
| sclerotic bone metastases | <radiology> Prostate, bladder, rectum, breast (occasionally), bronchus, carcinoid tumours, Hodgkin disease, stomach see: ivory vertebral body (12 Dec 1998) |
| pulsating metastases | Metastases to bone, usually from hypernephromas, but occasionally from thyroid tumours; may have expansile pulsation and a continuous bruit. (05 Mar 2000) |
| hypervascular liver metastases | <radiology> Renal cell carcinoma, carcinoid tumour, colonic carcinoma, choriocarcinoma, breast carcinoma, melanoma, pancreatic islet cell tumour, ovarian cystadenocarcinoma, sarcomas, pheochromocytoma see: liver metastatses (12 Dec 1998) |
| spleen metastases | <radiology> Ovarian (most common), melanoma, pancreatic (12 Dec 1998) |