| hyperplastic polyp | A benign small sessile polyp of the large bowel showing lengthening and cystic dilation of mucosal glands; also applied to non-neoplastic gastric mucosal polyp's. Synonym: metaplastic polyp. (05 Mar 2000) |
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| leukaemic hyperplastic gingivitis | Enlarged gingiva due to infiltration of leukaemic cells and infection from local factors in the face of diminshed host response. (05 Mar 2000) |