Adenoma
MONDO:0004972A neoplasm arising from the epithelium. It may be encapsulated or non-encapsulated but non-invasive. The neoplastic epithelial cells may or may not display cellular atypia or dysplasia. In the gastrointestinal tract, when dysplasia becomes severe it is sometimes called carcinoma in situ. Representative examples are pituitary gland adenoma, follicular adenoma of the thyroid gland, and adenomas (or adenomatous polyps) of the gastrointestinal tract.
Also known as: adenoma, acinar cell adenoma, acinar cell adenoma (morphologic abnormality), adenoma, benign
1681 clinical trials for this condition and its sub-types, 27 tagged with Adenoma itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
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Sub-types of Adenoma
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Digestive system adenoma 0 trials · 127 incl. sub-types
6 sub-types
- Colorectal adenoma 96 trials · 120 incl. sub-types Sub-types →
- Adenoma of small intestine 1 trial · 4 incl. sub-types Sub-types →
- Gastric adenoma 3 trials Sub-types →
- Warthin tumor 1 trial
- Bile duct adenoma 0 trials Sub-types →
- Gallbladder adenoma 0 trials
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Pituitary gland adenoma 34 trials · 67 incl. sub-types
9 sub-types
- Familial isolated pituitary adenoma 1 trial · 31 incl. sub-types Sub-types →
- Functioning pituitary gland adenoma 1 trial · 24 incl. sub-types Sub-types →
- Non-functioning pituitary adenoma 8 trials · 9 incl. sub-types Sub-types →
- Growth hormone-producing pituitary gland adenoma 2 trials Sub-types →
- ACTH-producing pituitary gland adenoma 0 trials
- Chromophobe adenoma 0 trials
- Pituitary gland acidophil adenoma 0 trials
- Pituitary gland basophil adenoma 0 trials
- Pituitary gland mixed eosinophil-basophil adenoma 0 trials
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Adrenal cortex adenoma 12 trials · 19 incl. sub-types
4 sub-types
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Cystadenoma 0 trials · 11 incl. sub-types
7 sub-types
- Serous cystadenoma 3 trials · 8 incl. sub-types Sub-types →
- Pancreatic cystadenoma 1 trial · 7 incl. sub-types Sub-types →
- Mucinous cystadenoma 2 trials · 3 incl. sub-types Sub-types →
- Bile duct cystadenoma 0 trials Sub-types →
- Ovarian cystadenoma 0 trials Sub-types →
- Papillary cystadenoma 0 trials Sub-types →
- Seminal vesicle cystadenoma 0 trials
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Follicular thyroid adenoma 1 trial · 7 incl. sub-types
5 sub-types
- Thyroid gland oncocytic adenoma 4 trials
- Toxic thyroid adenoma 2 trials
- Thyroid gland atypical follicular adenoma 0 trials
- Thyroid gland fetal adenoma 0 trials
- Thyroid gland macrofollicular adenoma 0 trials
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Parathyroid gland adenoma 6 trials
5 sub-types
- Chief cell adenoma 0 trials
- Familial parathyroid adenoma 0 trials
- Mixed cell type adenoma of parathyroid 0 trials
- Parathyroid gland clear cell adenoma 0 trials
- Parathyroid oncocytic adenoma 0 trials
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Oncocytic adenoma 0 trials · 4 incl. sub-types
2 sub-types
- Thyroid gland oncocytic adenoma 4 trials
- Parathyroid oncocytic adenoma 0 trials
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Hepatocellular adenoma 2 trials
1 sub-type
- Hepatic adenomas, familial 0 trials
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Papillary adenoma 2 trials
6 sub-types
- Bronchus adenoma 0 trials Sub-types →
- Chromophil adenoma of the kidney 0 trials Sub-types →
- Eccrine papillary adenoma 0 trials
- Extrahepatic bile duct papillary adenoma 0 trials
- Ovarian papillary cystadenoma 0 trials
- Papillary cystadenoma 0 trials Sub-types →
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Tubular adenoma 2 trials
2 sub-types
- Rectal tubular adenoma 0 trials
- Small intestinal tubular adenoma 0 trials
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Villous adenoma 0 trials · 2 incl. sub-types
6 sub-types
- Duodenal villous adenoma 2 trials
- Rectal villous adenoma 0 trials
- Urethral villous adenoma 0 trials
- Urinary bladder villous adenoma 0 trials
- Vaginal villous adenoma 0 trials
- Villous adenoma of colon 0 trials Sub-types →
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Adenoma of pancreas 1 trial
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Renal adenoma 0 trials · 1 incl. sub-types
2 sub-types
- Metanephric adenoma 1 trial
- Chromophil adenoma of the kidney 0 trials Sub-types →
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Tubulovillous adenoma 0 trials · 1 incl. sub-types
3 sub-types
- Colorectal tubulovillous adenoma 1 trial Sub-types →
- Small intestinal tubulovillous adenoma 0 trials
- Vaginal tubulovillous adenoma 0 trials
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Bartholin gland adenoma 0 trials
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Breast adenoma 0 trials
4 sub-types
- Adenoma of nipple 0 trials
- Breast apocrine adenoma 0 trials
- Breast ductal adenoma 0 trials
- Pregnancy adenoma 0 trials
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Clear cell adenoma 0 trials
2 sub-types
- Clear cell hidradenoma 0 trials
- Parathyroid gland clear cell adenoma 0 trials
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Lipoadenoma 0 trials
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Lung adenoma 0 trials
2 sub-types
- Alveoli adenoma 0 trials
- Bronchus adenoma 0 trials Sub-types →
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Microcystic adenoma 0 trials
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Middle ear adenoma 0 trials
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Minor vestibular glands adenoma 0 trials
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Mixed cell adenoma 0 trials
1 sub-type
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Ovarian adenoma benign 0 trials
2 sub-types
- Ovarian cystadenoma 0 trials Sub-types →
- Rete ovarii adenoma 0 trials Sub-types →
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Prostatic adenoma 0 trials
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Rete testis adenoma 0 trials
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Sebaceous adenoma 0 trials
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Sweat gland adenoma 0 trials
5 sub-types
- Breast apocrine adenoma 0 trials
- Eccrine papillary adenoma 0 trials
- Hidradenoma 0 trials Sub-types →
- Syringocystadenoma papilliferum 0 trials
- Syringofibroadenoma 0 trials
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Vaginal adenoma 0 trials
2 sub-types
- Vaginal tubulovillous adenoma 0 trials
- Vaginal villous adenoma 0 trials
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Water-clear cell adenoma 0 trials
Most studied deeper sub-types
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Can a simpler scope technique match the complex one for large colon growths?
Disease control OngoingResearchers compare two ways to remove large, non-cancerous growths from the colon. One method, endoscopic mucosal resection, removes the growth in pieces. The other, endoscopic submucosal dissection, removes it in one piece but takes longer and carries more risk. The trial tests…
Sponsor: José Carlos Marín Gabriel • Aim: Disease control
Last updated Sep 20, 2026 00:00 UTC
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Could a common drug replace surgery for pituitary tumors?
Disease control OngoingThis phase 3 trial tests whether cabergoline, a drug already used for hormone-producing pituitary tumors, can shrink or slow the growth of non-functioning pituitary adenomas (NFPAs). These tumors do not produce excess hormones, so current treatment is limited to surgery or radiat…
Phase 3 • Sponsor: St. Olavs Hospital • Aim: Disease control
Last updated Jul 23, 2026 00:00 UTC
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Could a simple stool test replace colonoscopy for cancer screening in cystic fibrosis?
Diagnosis OngoingThis study looks at whether stool-based tests (like the FIT test and Cologuard) can accurately detect colorectal cancer and precancerous polyps in adults with cystic fibrosis. Researchers will compare these non-invasive tests to the standard colonoscopy in 350 participants. The g…
Sponsor: University of Washington, the Collaborative Health Studies Coordinating Center • Aim: Diagnosis
Last updated Jun 27, 2026 12:00 UTC
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AI tool aims to sharpen colonoscopy diagnoses
Diagnosis OngoingThis study tests a computer program that analyzes colonoscopy images to help doctors decide if a growth (polyp) is an adenoma (pre-cancerous) or not. The software gives a probability score for each lesion. The trial involves 1,178 adults and compares the software's results to lab…
Sponsor: WAYCEN Inc • Aim: Diagnosis
Last updated Jun 27, 2026 11:00 UTC
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Norway launches massive colorectal cancer screening showdown: which test saves more lives?
Prevention OngoingThis large pilot study in Norway is comparing two common colorectal cancer screening methods—flexible sigmoidoscopy (a one-time scope exam) and biennial fecal immunochemical testing (a stool test)—to see which works best for the general population. Over 140,000 men and women aged…
Sponsor: Norwegian Institute of Public Health • Aim: Prevention
Last updated Jun 27, 2026 12:08 UTC
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Massive norwegian study aims to slash colon cancer deaths with simple screening
Prevention OngoingThis large study is testing whether a screening procedure called flexible sigmoidoscopy can lower the number of colorectal cancer cases and deaths. About 100,000 men and women aged 50-64 in Norway are taking part. The study also looks at adding a stool blood test and how screenin…
Sponsor: Norwegian Institute of Public Health • Aim: Prevention
Last updated Jun 27, 2026 12:08 UTC
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Colon polyp Follow-Up: 6 months vs 12 months – which is better?
Knowledge-focused By invitation onlyThis study looks at whether a 6-month or 12-month follow-up colonoscopy is better for people who had a large colon polyp (20-50 mm) removed that was not cancerous. About 546 adults will be assigned to one of the two follow-up schedules. The goal is to see which timing finds any r…
Sponsor: Indiana University • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:00 UTC