Lynch syndrome, also known as hereditary nonpolyposis colorectal cancer (HNPCC), is one of the most common inherited causes of colorectal cancer. The prevalence of Lynch syndrome varies among populations, but it is estimated to account for approximately 3-5% of all colorectal cancer cases

1. LYNCH
PRESENTER : ALI HAIDER
21104003-033
DEPARTMENT OF BIOTECHNOLOGY
(4TH)
SYNDROME

2. INTRODUCTION
SYMPTOMS
CAUSES
TREATMENT
GENETIC BASES AND INHERITANCE
REFERENCES
CONTENTS

3. INTRODUCTION
Lynch syndrome, also known as hereditary
nonpolyposis colorectal cancer (HNPCC).
It is an inherited genetic disorder that increases
the risk of developing certain types of cancer,
particularly colorectal cancer (cancer of the colon
or rectum) and endometrial cancer (cancer of the
lining of the uterus).

4. TIMMERMAN
INDUSTRIES
Abdominal pain or discomfort
Fatigue or weakness
Pelvic pain or discomfort
Painful urination
Changes in appetite or feeling full quickly
Nausea and vomiting
SYMPTOMS

5. CAUSES
Germline Mutations
Inherited Genetic Mutations
De Novo Mutations

6. TIMMERMAN
INDUSTRIES
TREATMENT
Surveillance and Screening
Prophylactic Surgery:
Medications
Genetic Counseling and Testing
1.
2.
3.
4.

7. TIMMERMAN
INDUSTRIES
GENETIC BASES AND INHERITANCE
Mutations in genes involved in DNA mismatch repair
(MMR).
The most commonly affected genes in Lynch syndrome are
MLH1, MSH2, MSH6, PMS2, and EPC.
Autosomal dominant inheritance pattern, which means
that a person with a mutation in one copy of the gene has a
50% chance of passing the mutation on to their children

8. REFERENCES
https://www.cancer.net/cancer-types/lynch-
syndrome
https://www.mayoclinic.org/diseases-
conditions/lynch-syndrome/symptoms-causes/syc-
20374714

9. Thank you!