| NPC | nasopharyngeal carcinoma; near point of convergence; nodal premature contractions; nonparenchymal [l... |
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| PAVNRT | paroxysmal atrioventricular nodal reciprocal tachycardia |
| PNC | penicillin; peripheral nucleated cell; pneumotaxic center; premature nodal contracture |
| SANDR | sinoatrial nodal reentry |
| TNI | total nodal irradiation |
| acth syndrome, ectopic | Symptom complex due to acth production by non-pituitary neoplasms. (12 Dec 1998) |
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| persistent ectopic pregnancy | An ectopic pregnancy which has persistent viable tissue, secreting hCG after conservative surgery. (05 Mar 2000) |
| pregnancy, ectopic | A pregnancy that is not in the usual place and is located outside the inner lining of the uterus. A fertilised egg settles and grows in any location other than the inner lining of the uterus. The vast majority of ectopic pregnancies occur in the fallopian tube (95%), however, they can occur in other locations, such as the ovary, cervix, and abdominal cavity. An ectopic pregnancy occurs in about 1 in 60 pregnancies. A major concern with an ectopic pregnancy is internal bleeding. If there is any doubt, seek medical attention promptly. (12 Dec 1998) |
| pregnancy, ectopic, symptoms of | Symptoms of an ectopic pregnancy can often be vague and include vaginal bleeding, abdominal or pelvic pain (usually stronger on one side),shoulder pain, weakness, or dizziness. Weakness, dizziness, and a sense of passing out upon standing can represent serious internal bleeding, requiring immediate medical attention. (12 Dec 1998) |
| hormones, ectopic | Hormones released from neoplasms or cells outside the usual sources of hormones. Such hormones may be useful as tumour markers. (12 Dec 1998) |
| tachycardia, ectopic atrial | A tachycardia originating in the atrial myocardium and characterised by rates between 135 and 175 beats per minute. (12 Dec 1998) |
| tachycardia, ectopic junctional | A tachycardia arising in the conduction tissues surrounding the atrioventricular node. It usually occurs during myocardial infarction, after heart surgery, or in digitalis intoxication. The rate may range from 140 to 250 beats per minute. (12 Dec 1998) |
| ectopic | Pertaining to or characterised by ectopia. (18 Nov 1997) |
| ectopic ACTH syndrome | <syndrome> The association of Cushing's syndrome with a non-pituitary neoplasm, usually a lung carcinoma that produces ACTH. (05 Mar 2000) |
| ectopic decidua | Decidual cells which may be found in the cervix, appendix, or areas other than the endometrium. (05 Mar 2000) |
| ectopic eyelash | The condition in which the eyelash's grow from the eyelid at a site other than the lid margin. Synonym: canities poliosis. (05 Mar 2000) |
| ectopic heartbeat | Any heartbeat that occurs out of the normal sinus rhythm of the heart. Examples include premature ventricular contractions and atrial premature contractions. Premature beats can be exacerbated by the use of stimulants such as caffeine, smoking, alcohol, decongestants and cocaine. (27 Sep 1997) |
| ectopic hormone | A hormone formed by tissue outside the normal endocrine site of production; e.g., adrenocorticotropic hormone produced by a bronchogenic carcinoma. Synonym: inappropriate hormone. (05 Mar 2000) |
| ectopic impulse | An electrical impulse from an area of the heart other than the sinus node. (05 Mar 2000) |
| ectopic pacemaker | Any pacemaker other than the sinus node. (05 Mar 2000) |