| CTR | Cardio-Thoracic Ratio |
|---|---|
| MURCS Associations | MUllerian duct aplasia, Renal aplasia, Cervico-thoracic vertebral(Somite) dysplasia Associations |
| AATS | American Association for Thoracic Surgery |
| ADT | Accepted Dental Therapeutics; adenosine triphosphate; admission, discharge, transfer; agar-gel diffu... |
| ATD | Alzheimer-type dementia; androstatrienedione; anthropomorphic test dummy; antithyroid drug; aqueous ... |
| infraclinoid aneurysm | An intracranial aneurysm occurring below the level of the anterior clinoid process of the sphenoid bone. (05 Mar 2000) |
|---|---|
| intracavernous aneurysm | An aneurysm of the carotid artery within the cavernous sinus. (05 Mar 2000) |
| intracranial aneurysm | <neurology> A dilated and weakened portion of a cerebral blood vessel that is prone to rupture. A cerebral aneurysm may occur as a birth defect or develop as the result of long-standing poorly controlled hypertension. Symptoms of a ruptured cerebral aneurysm include a sudden, severe thunderclap headache that may be associated with nausea, vomiting and a decreased level of consciousness. (27 Sep 1997) |
| intracranial mycotic aneurysm | <radiology> 3% of all intracranial aneurysms; multiple in 20%, source: subacute bacterial endocarditis (65%), acute bacterial endocarditis (9%), menigitis (9%), septic thrombophlebitis (9%), myxoma, location: peripheral to first bifurcation of major vessel (64%), often near the surface of brain (especially over convexities), Note: develops recurrent bleeding more frequently than congenital aneurysms See: mycotic aneurysm (12 Dec 1998) |
| ectatic aneurysm | An aneurysm in which all the coats of the artery, though stretched, are unruptured. (05 Mar 2000) |
| embolomycotic aneurysm | An obsolete term for an aneurysm caused by an embolism composed of an infected vegetation from a cardiac valve. (05 Mar 2000) |
| traumatic aneurysm | An aneurysm resulting from physical damage to the wall of an artery; usually a false aneurysm or arteriovenous aneurysm. (05 Mar 2000) |
| true aneurysm | Localised dilation of an artery with an expanded lumen lined by stretched remnants of the arterial wall. (05 Mar 2000) |
| tubular aneurysm | The uniform dilation of an artery along a considerable distance. Synonym: cylindroid aneurysm. (05 Mar 2000) |
| false aneurysm | <surgery> Pulsating, encapsulated haematoma in communication with the lumen of a ruptured vessel, ventricular pseudoaneurysm, a cardiac rupture contained and loculated by pericardium, which forms its external wall. An aneurysm whose walls consist of adventitia and periarterial fibrous tissue and haematoma. (05 Mar 2000) |
| fusiform aneurysm | An elongated spindle-shaped dilation of an artery. (05 Mar 2000) |
| abdominal part of thoracic duct | The part of the thoracic duct between the cisterna chyli and the aortic hiatus of the diaphragm. Synonym: pars abdominalis ductus thoracici. (05 Mar 2000) |
| anterior intercostal branches of internal thoracic artery | One of the arteries supplying the anterior portions of the intercostal spaces of the thoracic wall. Anterior intercostal arteries 1-6 arise as branches of the internal thoracic artery; 7-11 arise as branches of the musculophrenic artery. Synonym: rami intercostales anteriores, rami intercostalis anteriores arteria thoracica interna. (05 Mar 2000) |
| aorta, thoracic | The portion of the descending aorta proceeding from the arch of the aorta and extending to the diaphragm. (12 Dec 1998) |
| arch of thoracic duct | See: thoracic duct. (05 Mar 2000) |