| antral | <anatomy> Relating to an antrum. Source: Websters Dictionary (01 Mar 1998) |
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| antral sphincter | Angular sphincter, thickening of the circular muscular layer forming a proposed intermediate sphincter at the level of the angular notch of the stomach. While the thickening of the circular muscle may indicate the commencement of the pyloric antrum, true functional sphincteric activity distinct from the other peristaltic contractions of the stomach is not observed although some of these may in fact temporarily close off the antrum from the remainder of the stomach lumen. Synonym: antral sphincter, midgastric transverse sphincter, sphincter antri, sphincter intermedius, sphincter of antrum, sphincter of gastric antrum. (05 Mar 2000) |
| adenomatous polyp | A polyp that consists of benign neoplastic tissue derived from glandular epithelium. Synonym: cellular polyp, polypoid adenoma. (05 Mar 2000) |
| aural polyp | <otolaryngology> A benign polyp in the external ear canal that can be attached to the tympanic membrane. (27 Sep 1997) |
| bladder polyp | A pedunculated tumour that arises from the mucosal surface of the bladder. most are benign, but some may become malignant. (27 Sep 1997) |
| bleeding polyp | Synonym: vascular polyp. (05 Mar 2000) |
| bronchial polyp | A polyp growing from the bronchial mucosa. (05 Mar 2000) |
| cardiac polyp | Usually a rounded thrombus attached to the endocardium. (05 Mar 2000) |
| vascular polyp | A bulging or protruding angioma of the nasal mucous membrane. Synonym: bleeding polyp. (05 Mar 2000) |
| gelatinous polyp | A polyp that consists of delicate, loose, edematous connective tissue, a polypoid myxoma. (05 Mar 2000) |
| regenerative polyp | A hyperplastic polyp of the gastric mucosa. (05 Mar 2000) |
| cellular polyp | A polyp that consists of benign neoplastic tissue derived from glandular epithelium. Synonym: cellular polyp, polypoid adenoma. (05 Mar 2000) |
| pedunculated polyp | Any form of polyp that is attached to the base tissue by means of a slender stalk. (05 Mar 2000) |
| retention polyp | A smoothly rounded mucosal hamartoma of the large bowel, which may be multiple and cause rectal bleeding, especially in the first decade of life; it is not precancerous. Synonym: retention polyp. (05 Mar 2000) |
| choanal polyp | An antral-choanal polyp that extends into the nasopharynx; generally originates in the antrum. (05 Mar 2000) |