HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

What is hereditary non-polyposis colorectal cancer (hnpcc) vs familial adenomatous polyposis (fap)?

A doctor has provided 1 answer

Both inherited: In fap presents as colonic polyps ( gardners syn will have other tumors ) , autosomal recessive due to mutations in gate keeper, tumor suppres gene. On the contrary hnpcc or lynch syndrome. Is autosomal dominant, due to dna mismatch in repair, associated with other cancers of stomach, endomet. Ca, ovary, brain, skin etc.

Dr Singh and 2 doctors agreed

Answered 3/20/2013

5.8k views

Thank

Related Questions

A member asked:

If I have been going to my pediatrician since I was born, and recieving regular annual blood tests, would I know if I have Familial adenomatous polyposis or Lynch Syndrome?

2 doctors weighed in across 2 answers

A member asked:

What are chances of my children inheriting the condition familial adenomatous polyposis?

2 doctors weighed in across 2 answers

A member asked:

I had a colonoscopy at 18 due to pain, bleeding they found four polyps, one being a fap (familial adenomatous polyposis) why only one? More in future?

A doctor has provided 1 answer

A member asked:

What would cause FIT + in a 45y female with hx of colorectal cancer in remission and hemorrhoid ligation done 6mo ago, last EGD+Colo in 11/2020 (1 tabular adenoma bx, erosive gastritis), CEA 0.7, 2g/dl Hgb drop in last 2mo w/o clear bleeding source?

2 doctors weighed in across 2 answers

A member asked:

My dad was diagnosis with rectal cancer. After rvw of familial history of cancer dr is strongly suspicious of and testing for hnpcc. How long for results?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

Familial adenomatous polyposis--how often does it progress to cancer?
Why is the colon prone to cancer in hnpcc (hereditary nonpolyposis colorectal cancer)?
For what reason colon part is usually prone to cancer in hnpcc (hereditary hereditary nonpolyposis colorectal cancer)?
Has anyone heard of fap (familial adenomatous polyposis) outside the amish community?
I'm having constipation, could it be familial adenomatous polyposis and what are the other symptoms?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.