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Living with Carcinoma of male breast

A rare cancer of the breast that mostly affects older men.

Understanding Carcinoma of male breast

Carcinoma of the male breast is a rare cancer of the breast that affects mostly older men.

It makes up less than 1% of all cancers in men. The most common type is invasive ductal carcinoma. Most patients are treated with mastectomy (surgery to remove the breast).

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Breastcancer.org and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
What type of breast cancer do I have?
Is surgery the right treatment for me?
Should I have genetic counseling or testing?

Quick facts

GARD doesn't describe a cause for this condition yet.

Also known as: carcinoma of the male breast; male breast cancer; male breast carcinoma; malignant neoplasm of male breast; neoplasm of male breast

Patient organizations

Source: NIH GARD · Carcinoma of male breastGARD ID 9312 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Carcinoma of male breast.

Explore the Carcinoma of male breast blog

Explore research for Carcinoma of male breast

Explore actively recruiting Carcinoma of male breast studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Carcinoma of male breast with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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