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Living with Parathyroid carcinoma

A rare cancer of one of the four parathyroid glands in the neck, usually in adults in their 40s or 50s, often raising blood calcium.

Understanding Parathyroid carcinoma

Parathyroid carcinoma is a rare cancer of one of the four parathyroid glands in the neck.

It usually affects people in their forties or fifties. In about 90 percent of cases, the gland makes too much parathyroid hormone, which raises blood calcium. This can cause kidney stones, bone loss, belly pain, and tiredness. In about 10 percent, hormone levels are normal and symptoms come from the tumor pressing on nearby structures in the neck.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • High parathyroid hormone (hyperparathyroidism)
  • Kidney stones
  • Thin bones (osteoporosis)
  • Extreme thirst
  • Tiredness (fatigue)
  • Trouble swallowing or a hoarse voice

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

    Specialists who may be involved include cancer specialists and hormone specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Cancer specialists (oncologists); Hormone specialists (endocrinologists)
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 rare disease patient organizations for support
  • 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
Is my cancer making extra hormone, and how do we manage my calcium levels?
What treatment is recommended, and who should be on my team?
Should I have genetic testing?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Dominant

GARD lists this condition as autosomal dominant, which means one changed copy of a gene is enough to cause it. It doesn't name a specific gene.

Endocrine

Also known as: adenocarcinoma of parathyroid; adenocarcinoma of parathyroid gland; adenocarcinoma of the parathyroid; adenocarcinoma of the parathyroid gland; carcinoma of parathyroid; carcinoma of parathyroid gland

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Parathyroid carcinomaGARD ID 7329 · 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 Parathyroid carcinoma.

Explore the Parathyroid carcinoma blog

Explore research for Parathyroid carcinoma

Explore actively recruiting Parathyroid carcinoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Parathyroid carcinoma 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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