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Palmar Pit

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What Palmar Pits Are

Palmar pits are tiny, shallow dents or small depressions in the skin on the palm side of the hand. They usually appear pink or the same color as your skin. These pits can be subtle and sometimes hard to notice at first. Soaking your hands in water can make the skin softer and help the pits stand out more clearly. Palmar pits themselves do not cause pain or other symptoms.

Why Palmar Pits Matter in Cancer Care

Palmar pits are often seen in people with a rare inherited condition called basal cell nevus syndrome (BCNS), also known as Gorlin syndrome. BCNS is a genetic disorder that increases the risk of developing basal cell skin cancer, which is the most common type of skin cancer. People with BCNS may develop many basal cell tumors over their lifetime. They are also at risk for other types of tumors, including medulloblastoma, a cancer that starts in the brain. Because palmar pits can appear early, they may help doctors identify people who might have BCNS and need closer monitoring or special care.

What You Might See or Hear About Palmar Pits

If you notice small pits on your palms or if a doctor mentions this finding during a physical exam, it does not automatically mean you have BCNS or cancer. Palmar pits alone are not a diagnosis but a clue that may lead to further evaluation. Your healthcare provider may ask about your family history, look for other signs of BCNS, or recommend genetic testing. Palmar pits are usually painless and do not cause symptoms themselves.

How Doctors Use the Finding

When doctors see palmar pits, especially if there are other signs or a family history of BCNS, they may suggest additional tests or monitoring. This can include skin exams to watch for basal cell tumors or other evaluations to check for related health concerns. Genetic counseling might also be recommended to understand the risk for you and your family.

What Palmar Pits Do Not Mean

Having palmar pits does not mean you definitely have BCNS or cancer. Many people do not have this condition even if they have small pits on their palms. Palmar pits are just one piece of information doctors use to decide if further testing or care is needed.

Questions to Ask Your Healthcare Team

If palmar pits come up in your care, you might ask: What does having palmar pits mean for my cancer risk? Should I have any tests or screenings? Is genetic counseling recommended? How can I watch for signs of skin cancer or other related conditions? Understanding these points can help you feel more informed and involved in your care.

Remembering the Context

This information is meant to help you understand what palmar pits are and why they might be important. It does not replace personalized medical advice. If you have concerns about palmar pits or related health risks, talk with your healthcare provider. They can explain what this finding means for you and guide you on the next steps to take for your health and peace of mind.

Sources

Public source information used for this glossary entry includes: