adenoma

n. benign tumor shaped like a gland; benign tumor which originates in a gland

An adenoma is a collection of growths (-oma) of glandular origin. Adenomas can grow from many organs including the colon, adrenal, pituitary, thyroid, etc. These growths are benign, although over time they may progress to become malignant (at which point they are called adenocarcinomas). Though adenomas are benign, they may unfortunately cause serious health complications by compressing other structures (mass effect) and by producing large amounts of hormones in an unregulated, non-feedback dependent manner (paraneoplastic syndrome).
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Adenoma /ad·e·no·ma/ a benign epithelial tumor in which the cells form recognizable glandular structures or in which the cells are derived from [more]Adenoma - Community and Resources

Noun
1. a benign epithelial tumor of glandular origin
(hypernym) benign tumor, benign tumour, nonmalignant tumor, nonmalignant tumour, nonmalignant neoplasm
(hyponym) fibroadenoma

n. adenoma, benign tumor shaped like a gland; benign tumor which originates in a gland