| sessile polyp | Any form of polyp that has a relatively broad base. (05 Mar 2000) |
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| sessile | Attached by a base rather than a stalk, a sessile lesion adheres closely to the surface (mucosa). (27 Sep 1997) |
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| sessile-eyed | <zoology> Having eyes which are not elevated on a stalk; opposed to stalk-eyed. Sessile-eyed Crustacea, the Arthrostraca. Source: Websters Dictionary (01 Mar 1998) |
| sessile hydatid | A vesicular nonpedunculated structure attached to the cephalic pole of the testis; a vestige of the cephalic end of the paramesonephric (mullerian) duct. Synonym: appendix testis, appendix of the testis, nonpedunculated hydatid, ovarium masculinum, sessile hydatid. (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) |