| macrofollicular adenoma | <tumour> A follicular adenoma of the thyroid, composed of large follicles containing colloid. Synonym: macrofollicular adenoma. (05 Mar 2000) |
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| papillary adenoma of large intestine | <tumour> Appears as a solitary sessile, often large, tumour of colonic mucosa composed of mucinous epithelium covering delicate vascular projections; malignant change occurs frequently; hypersecretion occurs rarely. Also known as adenoma. Synonym: papillary adenoma of large intestine. (05 Mar 2000) |
| papillary cystic adenoma | <tumour> An adenoma in which the lumens of the acini are frequently distended by fluid, and the neoplastic epithelial elements tend to form irregular, fingerlike projections. (05 Mar 2000) |
| villous adenoma | <tumour> Appears as a solitary sessile, often large, tumour of colonic mucosa composed of mucinous epithelium covering delicate vascular projections; malignant change occurs frequently; hypersecretion occurs rarely. Also known as adenoma. Synonym: papillary adenoma of large intestine. (05 Mar 2000) |
| renal cortical adenoma | <tumour> One of the usually small adenoma's sometimes found in the renal cortex and derived from renal tubular tissue. (05 Mar 2000) |
| gonadotrophin-producing adenoma | <tumour> A rare type of pituitary adenoma that produces FSH and LH; its cells can be identified only by immunochemical techniques. (05 Mar 2000) |
| gonadotropin-producing adenoma | <tumour> A rare type of pituitary adenoma that produces FSH and LH; its cells can be identified only by immunochemical techniques. (05 Mar 2000) |
| growth hormone-producing adenoma | <tumour> An adenoma that produces the clinical picture of gigantism or acromegaly, although a third of the cells have no granules or are a mixture of acidophils and chromophobes; some tumours may secrete both growth hormone and prolactin; often an acidophil or eosinophil adenoma. (05 Mar 2000) |
| chromophil adenoma | <tumour> Any adenoma composed of cells that stain readily. (05 Mar 2000) |
| chromophobe adenoma | <tumour> A tumour of the adenohypophysis whose cells do not stain with either acid or basic dyes. (05 Mar 2000) |
| chromophobic adenoma | <tumour> A tumour of the adenohypophysis whose cells do not stain with either acid or basic dyes. (05 Mar 2000) |
| microcystic adenoma of pancreas | <radiology> Benign tumour of pancreas, M:F = 1:4, peak age 69 years of age, tiny cysts filled with GLYCOGEN, not mucin, large (ca. 10 cm), innumerable small cysts (1mm - 20mm), central stellate scar with or without calcification, hypervascular, head = body = tail, ** associated with von Hippel-Lindau syndrome, Cf: macrocystic adenoma, alias mucinous cystic neoplasm (12 Dec 1998) |
| microfollicular adenoma | <tumour> A foetal adenoma of the thyroid composed of very small follicles and solid alveolar groups of thyroid epithelial cells. (05 Mar 2000) |
| Pick's tubular adenoma | A neoplasm of the ovary, arising from the ovarian stroma, mimicking to a greater or lesser extent derivatives of the sex cord mesenchyme of the testis, and sometimes causing defeminization and virilization. (12 Dec 1998) |
| monomorphic adenoma | <tumour> A benign ductal neoplasm of the salivary glands, with a uniform epithelial pattern and lacking the chondromyxoid stroma of a pleomorphic adenoma. (05 Mar 2000) |