| oesophageal constrictions | Three narrowings of the oesophagus normally demonstrated radiographically following a barium swallow: the upper or pharyngeal oesophageal constriction, at the beginning of the oesophagus, is caused by the cricopharyngeus muscle, often referred to as the superior oesophageal sphincter; the middle or aortic constriction is a left-sided narrowing due to the oesophagus passing the aortic arch; the inferior or diaphragmatic oesophageal constriction corresponds to the passage of the oesophagus through the oesophageal hiatus of the diaphragm. Synonym: impressions of oesophagus. (05 Mar 2000) |
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| oesophageal diverticula | <radiology> Pharyngo-oesophageal (Zenker), cricopharyngeal spasm, Killian's dehiscence, posterior; if lateral, usually on left, Treatment: diverticulopexy with or without myotomy, mid-oesophageal, pulsion, not traction (not associated with TB), dysmotility, usually asymptomatic, distal (epiphrenic), dyity (including DES and achalasia), symptomatic, usually on right, Treatment: excision and myotomy, ** all due to PULSION (12 Dec 1998) |
| oesophageal diverticulum | Saccular, outward protrusion of all or a portion of the oesophageal wall from the lumen of the oesophagus. (12 Dec 1998) |
| oesophageal dysmotility | <radiology> Achalasia, Chagas disease, pseudoachalasia, scleroderma, diffuse oesophageal spasm, other causes, oesophageal atresia repair, neurologic disease (unilateral pharyngeal paralysis), oesophagitis (12 Dec 1998) |
| oesophageal dysrhythmia | Abnormal motility of the muscular layers of the oesophageal wall, such as occurs in oesophageal spasm. (05 Mar 2000) |
| oesophageal filling defect | <radiology> Tumour, carcinoma (oesophagus, stomach extending proximally), leiomyoma / leiomyosarcoma, polyp: fibrovascular, inflammatory, adenomatous, papilloma, carcinosarcoma, lymphoma, metastasis, oesophageal varix, extrinsic lesion (vascular impression, adenopathy, cyst), foreign body (12 Dec 1998) |
| oesophageal fistula | Abnormal passage communicating with the oesophagus. (12 Dec 1998) |
| oesophageal glands | A variable number of small compound mucous glands in the submucosa of the oesophagus. Synonym: glandulae oesophageae. (05 Mar 2000) |
| oesophageal hiatus | The opening in the right crus of the diaphragm, between the central tendon and the hiatus aorticus, through which pass the oesophagus and the two vagus nerves. Synonym: hiatus oesophageus, oesophageal opening. (05 Mar 2000) |
| oesophageal impression | The marking of the oesophagus on the back of the left lobe of the liver. Synonym: impressio oesophagea. (05 Mar 2000) |
| oesophageal intramural pseudo-diverticulosis | <radiology> Dilated submucosal glands and ducts, similar to Rokitansky-Aschoff sinuses of gall bladder, XR: multiple intramural tics, often on one view only, secondary to oesophagitis, relatively asymptomatic, with or without stricture, with or without candidiasis (12 Dec 1998) |
| oesophageal lead | An electrocardiographic lead passed down the throat into the oesophagus to record the electrocardiogram at various levels of the oesophagus; especially useful for certain types of arrhythmias. Similarly, a transducer for echocardiography can be passed into the oesophagus. (05 Mar 2000) |
| oesophageal motility disorders | Disorders affecting the motor function of the upper or lower oesophageal sphincters, the oesophageal body, or a combination of these parts. The failure of the sphincters to maintain a tonic pressure may result in the impeding of the passage of food, regurgitation of food, or reflux of gastric acid into the oesophagus. (12 Dec 1998) |
| oesophageal mucosa | The inner coat of the oesophagus. Synonym: tunica mucosa oesophagi. (05 Mar 2000) |
| oesophageal mucosal nodules | <radiology> Glycogenic acanthosis, oesophagitis (especially monilial), superficial spreading carcinoma (12 Dec 1998) |