Medical Oncologist
CION Cancer Clinics
Positive for CDK4, MITF or POT1: what happens next | CION Cancer Clinics
A positive CDK4, MITF or POT1 result is not an emergency. The main change is regular full skin checks with a specialist, careful self-checks at home and sensible sun protection. What else is needed depends on which gene your report names. This page explains what changes, what the first months usually look like, and which common fears are not true. At CION Cancer Clinics, our oncologists explain what a gene result means for you and your family, and plan the checks that follow.
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Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
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On this page
- I have tested positive for CDK4, MITF or POT1. What happens now?
- What changes after a positive result, and what stays the same?
- What do the first few months usually look like?
- What do the words on your result mean?
- How do next steps differ if you have had cancer or are well?
- What do people fear after this result that is not true?
- What this page cannot tell you
- Common questions after a positive CDK4, MITF or POT1 result
The short answer
I have tested positive for CDK4, MITF or POT1. What happens now?
A positive result for one of these genes is not an emergency. The main change is regular full skin checks with a skin specialist, careful checks of your own skin at home, and sensible sun protection. Anything beyond that depends on which of the three genes your report names.
First, check which gene and which word
Your report names one gene, not all three. Look for pathogenic or likely pathogenic beside it. For MITF, the report often names one particular change that is known to raise risk modestly. A variant of uncertain significance is not a positive result and should not change your care.
If you already have melanoma or another cancer
Tell your oncologist and your skin specialist. The result rarely changes treatment for the cancer you have now. It does shape how closely the rest of your skin is watched, and it opens testing for your relatives.
If you are well
Book a full skin check and a genetic counselling appointment in the coming weeks. Start checking your own skin, including the soles of your feet, your palms and under your nails. Nothing else needs to happen this week.
CDK4 carries the highest melanoma risk of the three, MITF the lowest. The plan follows the gene.What a result changes
What changes after a positive result, and what stays the same?
For all three genes the core of the plan is the skin. The extras depend on the gene and on your family history.
Your skin checks
A skin specialist examines your whole skin, usually once or twice a year, often with a handheld magnifier called a dermatoscope. Some centres photograph your moles so that changes can be compared at the next visit.
Checking at home
- Look over your whole skin about once a month
- Include soles, palms, nails and inside the mouth
- Ask a family member to check your back
Sun protection
Shade, long sleeves, a wide hat and sunscreen during the strong midday sun. This matters even in darker skin, and it is simple to build into daily life in Telangana's heat.
Gene-specific extras
For MITF, some doctors ask about kidney symptoms such as blood in the urine. For POT1, your team may discuss other cancers seen in your family. Routine extra scans are not standard for any of the three, and evidence here is thin.
Your family
Each brother, sister, child and parent has a one in two chance of carrying the same change. A simple targeted test for your exact change can tell them whether they share your plan.
Not sure whether this applies to you?
Ask an oncologistThe first few months
What do the first few months usually look like?
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The result appointment
Your counsellor or doctor confirms which gene and which change was found, and whether it is a confirmed fault. Bring someone with you if you can.
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Your family tree is drawn out
The counsellor asks who had melanoma or other cancers, and at roughly what age. This decides whether your plan needs anything beyond skin checks.
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A first full skin check
A skin specialist examines every part of your skin and records your moles. Anything unusual may be removed and sent for testing. Most turn out to be harmless.
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Relatives are told
You are usually given a letter to share. It explains the change in plain words so each relative's doctor can arrange a targeted test.
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A routine settles in
Regular specialist skin checks, monthly self-checks and sun protection become part of life. The plan is reviewed as relatives are tested and as evidence on these genes grows.
On your report
What do the words on your result mean?
- Melanoma
- A cancer of the skin's pigment cells. It is the main cancer linked to all three genes.
- Pathogenic
- Known to affect how the gene works and to raise cancer risk. Likely pathogenic is managed the same way in practice.
- Dermatoscope
- A lit magnifier a skin specialist uses to look closely at moles. It does not hurt.
- Atypical mole
- A mole that looks unusual in shape or colour. Most are harmless, but they are watched closely.
- Acral melanoma
- Melanoma on the palms, soles or under the nails. It is the form most often seen in Indian skin.
- Cascade testing
- Testing relatives, one step at a time, for the exact change found in your family.
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Side by side
How do next steps differ if you have had cancer or are well?
You have had melanoma
You are well
Your cancer follow-up continues as planned
A first full skin check is booked
The rest of your skin is watched more closely
Specialist skin checks become regular
Your result opens testing for relatives
Your result opens testing for relatives
Self-checks and sun protection matter even more
Self-checks and sun protection begin now
Commonly believed
What do people fear after this result that is not true?
"Indian skin does not get melanoma."
Melanoma is less common in darker skin, but it happens. In India it often appears on the soles, palms or under a nail, where people rarely look. That is why self-checks include these places.
"All three genes carry the same risk."
They do not. CDK4 raises melanoma risk sharply, POT1 sits in between, and the common MITF change raises it only modestly. Your plan should match your gene, not the most serious of the three.
"I should have all my moles removed."
Removing healthy moles does not prevent melanoma, and most melanomas start in new spots rather than old moles. Moles are removed only when one looks unusual or changes.
"Sunscreen alone keeps me safe."
Sunscreen helps, but shade, clothing and a hat do more. Even with careful sun protection, skin checks remain the most important part of the plan.
Being straight with you
What this page cannot tell you
It cannot tell you what your own result means for you. What your specific variant means is a question for the counsellor who ordered the test. The gene, the exact change, your skin and your family history all have to be weighed together.
Who this does not apply to
This page is for people with a confirmed pathogenic result in CDK4, MITF or POT1. If your report says variant of uncertain significance, the steps here do not apply. If you have had no test and no melanoma in the family, you almost certainly do not need one.
Where the evidence is thin
These genes are rare, and most of what is known comes from small studies of fair-skinned families abroad. Very few Indian carriers have been studied. For POT1 especially, the full list of linked cancers is still being worked out. Advice may change, and your yearly review is where any change reaches you.
Counselling is available in Telugu. Call the helpline if you would like to arrange it.Questions we are asked
Common questions after a positive CDK4, MITF or POT1 result
How urgent is this?
For someone who is well, it is not urgent. Book a skin check and a counselling appointment in the coming weeks. If you notice a mole or dark patch that is new, changing, bleeding or itching, see a doctor promptly rather than waiting.
What should I look for when I check my own skin?
A new dark spot, a mole that changes in size, shape or colour, one that looks different from the rest, or a dark line under a nail. Check the soles and palms carefully. Photographs on your phone help you compare over time.
Do I need scans of other organs?
Usually not. Routine scans are not standard for any of the three genes. Your team may suggest extra checks only if other cancers appear in your family, especially with POT1. Report new symptoms promptly instead.
Who in my family should I tell first?
Start with brothers, sisters, parents and adult children, since each has a one in two chance of carrying the change. Include the men. A family letter from your counsellor makes these conversations easier.
Should my children be tested?
Testing usually waits until adulthood, when the young person can decide. In the meantime, children in the family can simply follow good sun protection and have any unusual mole checked. Your counsellor will advise on your family.
Will this affect my insurance?
India has no dedicated law on genetic discrimination in insurance. Existing policies are rarely affected, but new applications may ask about known conditions. Raise this with your counsellor, and read any proposal form carefully before answering.
Can my result change later?
A confirmed pathogenic result very rarely changes. What changes is the advice on managing it, as more families are studied. For these rare genes that may happen more often, which is why regular reviews matter.
Can I get counselling in Telugu?
Yes. Counselling can be arranged in Telugu, and family members are welcome to join. Bringing a son, daughter or sibling often helps you ask questions and remember the answers later.
Your Specialists
Meet CION's oncologists. Bring your family history or genetic report to them.
Our medical oncologists see people with a strong family history of cancer, arrange genetic counselling and testing where it fits, and plan the checks that follow.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
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Sources
- National Cancer Institute — Genetics of Skin Cancer (PDQ)
- MedlinePlus Genetics — CDK4 gene
- MedlinePlus Genetics — MITF gene
- Cancer Research UK — Risks and causes of melanoma
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
CDK4, MITF and POT1 mutation: which cancers and what riskHow much each gene actually raises riskTesting the family for CDK4, MITF and POT1Who to tell, and how relatives are testedCDK4, MITF and POT1: what the genes doHow each gene works in the cellFamilial atypical multiple mole melanoma syndromeThe better-known melanoma gene pattern
Talk to us
Just received a melanoma gene result and unsure what to do first?
Bring your report, and a genetic counsellor can explain what it means for you and your family, in Telugu if you prefer. One helpline serves every CION centre.