Adenoma

An adenoma is a benign tumour of a gland. An adenoma may occasionally become malignant (adenocarcinoma).

Adenomas can affect glands (endocrine glands, liver, pancreas, stomach, prostate, kidney, breast, gallbladder, testes, and salivary glands) or some mucosal membranes (uterus, colon, rectum, bronchi).