| AMR | acoustic muscle reflex; activity metabolic rate; acute mitral stenosis; alopecia-mental retardation ... |
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| ASS | acute serum sickness; acute spinal stenosis; anterior superior spine; argininosuccinate synthetase |
| AVS | aortic valve stenosis; arteriovenous shunt; auditory vocal sequencing |
| CAS | calcarine sulcus; calcific aortic stenosis; Cancer Attitude Survey; carbohydrate-active steroid; car... |
| CFS | cancer family syndrome; Chiari-Frommel syndrome; chronic fatigue syndrome; craniofacial stenosis; cr... |
| oesophageal acidity test | <investigation> A test which measures the frequency and duration of stomach acid that enters the oesophagus. After swallowing a thin tube into your stomach the tube is attached to a monitoring device. The pH is then monitored over time. This test is used to diagnose gastrooesophageal reflux disease. (27 Sep 1997) |
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| oesophageal and gastric varices | Submucosal varices of the lower oesophagus or gastric fundus mucosa, frequently caused by the development of portal collateral vessels consequent to portal hypertension. (12 Dec 1998) |
| oesophageal arteries | Oesophageal branches of the following: 1) inferior thyroid artery; 2) left gastric artery; 3) thoracic aorta. (05 Mar 2000) |
| oesophageal atresia | A congenital anomaly where the upper oesophagus ends (atresia) and does not connect with the stomach and the lower oesophagus connects to the trachea (tracheoesophageal fistula). A common complication seen shortly after birth is an aspiration pneumonia. Infants will demonstrate excessive salivation, gagging and coughing with feeding, poor feeding and a bluish discolouration to the skin (cyanosis). Treatment involves the surgical repair of the oesophagus before the child can take anything by mouth. (27 Sep 1997) |
| oesophageal branches | Branches to the oesophagus. Synonym: rami oesophageales, rami oesophagei. (05 Mar 2000) |
| oesophageal branches of the inferior thyroid artery | <anatomy, artery> Distribution: upper one-quarter of oesophagus; anastomosis: oesophageal branches of thoracic aorta. Synonym: rami oesophageales arteriae thyroideae inferioris. (05 Mar 2000) |
| oesophageal branches of the left gastric artery | <anatomy, artery> Ascends through oesophageal hiatus of diaphragm to supply lowermost (cardiac) oesophagus; anastomosis: oesophageal branches of thoracic aorta. Synonym: rami oesophageales arteriae gastricae sinistrae. (05 Mar 2000) |
| oesophageal branches of the recurrent laryngeal nerve | <anatomy, nerve> Supply motor and sensory fibres to cervical oesophagus on right side and to cervical and upper thoracic oesophagus on left. Synonym: rami oesophagei nervi laryngei recurrentis. (05 Mar 2000) |
| oesophageal branches of the thoracic aorta | Branches arising directly from the anterior aspect of the portion of the thoracic aorta adjacent to the oesophagus, by which most of the oesophagus is supplied. Synonym: rami oesophageales aortae thoracicae. (05 Mar 2000) |
| oesophageal branches of the vagus nerve | <anatomy, nerve> Includes both branches passing directly from vagi and the branches from the recurrent laryngeal nerves that form the oesophageal nerve plexus which surrounds oesophagus, supplying it and adjacent portions of the pericardium. Synonym: rami oesophagei nervi vagi. (05 Mar 2000) |
| oesophageal cancer | Cancer of the oesophagus (the swallowing tube that passes from the throat to the stomach). The risk of cancer of the oesophagus is increased by long-term irritation of the oesophagus such as with smoking, heavy alcohol intake, and Barrett's oesophagitis. Cancer of the oesophagus can cause difficulty and pain with swallowing solid food. Diagnosis of oesophageal cancer can be made by barium X-ray of the oesophagus, and confirmed by endoscopy with biopsy of the cancer tissue. (12 Dec 1998) |
| oesophageal candidiasis | <gastroenterology, microbiology, oncology> Infection with a fungus of the genus Candida. It is usually a superficial infection of the moist cutaneous areas of the body and is generally caused by Candida albicans, it most commonly involves the skin (dermatocandidiasis), oral mucous membranes (oral candidiasis), respiratory tract (bronchocandidiasis) and vagina (vaginal candidiasis or thrush). Rarely there is a systemic infection or endocarditis. Oral candidiasis: describes a fungal (yeast) infection of the oral cavity due to Candida. It is common in infants, diabetics or those on chemotherapy and is well recognised in patients with HIV infection and AIDS. Oesophageal candidiasis: Infection of the oesophagus by the yeast-like fungus Candidal albicans. Usually occurs in the immunocompromised individual (AIDS or following chemotherapy). Oral candidiasis is a predisposing factor but oesophageal involvement can occur without evidence of infection in the oral cavity. Symptoms include difficulty swallowing, pain on swallowing and oral lesions. Diagnosis is made using endoscopy. Treatment is with antifungal agents such as ketoconazole or fluconazole. Synonym: moniliasis, candidosis, oidiomycosis, blastodendriosis. (16 Dec 1997) |
| oesophageal carcinoma | <radiology> EtOH, tobacco, achalasia, Plummer-Vinson syndrome, stricture (caustic, radiation), Barrett mucosa (GE reflux, hiatus hernia), tylosis, geographical areas: Iran, China, southern France, Japan, head/neck carcinoma <strong>not</strong> Sprue / coeliac disease (12 Dec 1998) |
| oesophageal carcinoma risk factors | <radiology> P Plummer-Vinson Web, A achalasia, alcohol, B Barrett oesophagus, S stricture, T tylosis, tobacco see: oesophageal carcinoma (12 Dec 1998) |
| oesophageal carcinoma: types | <radiology> Histologic types: squamous cell carcinoma (95%), adenocarcinoma (4%), 70% from Barrett oesophagus, carcinosarcoma = pseudosarcoma = spindle cell squamous cell carcinoma, usually middle 1/3 of oesophagus, large, polypoid, smooth, intramural mass; may be pedunculated, mucoepidermoid carcinoma, adenoid cystic carcinoma radiologic types: polypoid/fungating form (most common), sessile/pedunculated tumour with lobulated surface, applecore lesion, ulcerating form, infiltrating form, gradual narrowing with smooth transition (Differential diagnosis: benign stricture), varicoid form: superficial spreading carcinoma, thickened nodular tortuous longitudinal folds (Differential diagnosis: varices) (12 Dec 1998) |