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The Daily Insight

What is a parathyroid scan

Author

Robert Spencer

Published Mar 17, 2026

A parathyroid scan uses a radioactive compound which gives off gamma rays, called a radiotracer, to diagnose and localize parathyroid adenoma. You will be given a small dose of radiotracer through an intravenous (IV). A gamma camera is used to detect the rays and produces images of parathyroid tissue.

What happens in a parathyroid scan?

A parathyroid scan uses a radioactive compound which gives off gamma rays, called a radiotracer, to diagnose and localize parathyroid adenoma. You will be given a small dose of radiotracer through an intravenous (IV). A gamma camera is used to detect the rays and produces images of parathyroid tissue.

How long does a parathyroid CT scan take?

A parathyroid CT scan takes about five minutes to perform. The entire procedure—including prep time—takes about an hour.

Why is a parathyroid scan done?

A parathyroid scan is used to detect any abnormalities within the parathyroid glands. Parathyroid glands are located behind the thyroid gland in your neck, and they regulate the amount of calcium in your body.

How long does a parathyroid ultrasound take?

The test takes about 30 minutes.

Do you need to fast for parathyroid scan?

During the time between the scans you are free to leave the department and fasting is not necessary. Is there any preparation before this scan? There is no preparation for this scan. You may eat & drink as normal and are free to continue with any medication as prescribed by your doctor.

How do I prepare for a parathyroid scan?

How do I prepare for a parathyroid MIBI scan? There is no special preparation necessary before the scan. You may eat and drink as normal. It is important that you let staff at the hospital or radiology facility where you are having the scan know if you are (or think you could be) pregnant or are breast-feeding.

How long is recovery from parathyroid surgery?

How Long Does It Take to Recover from Parathyroid Surgery? Parathyroid surgery recovery time varies, but most patients can resume their normal activities within a few days of treatment. Dr. Larian typically recommends his patients take up to five days off from work or school after a parathyroidectomy.

What are the symptoms of parathyroid disease?

  • A lump in the neck.
  • Difficulty speaking or swallowing.
  • Muscle weakness.
  • Sudden increase in blood calcium levels (hypercalcemia)
  • Fatigue, drowsiness.
  • Urinating more than usual, which may cause you to be dehydrated and very thirsty.
  • Bone pain and broken bones.
  • Kidney stones.
What happens if hyperparathyroidism is left untreated?

The effects of hyperparathyroidism can result in other health concerns, if left untreated. In addition to kidney stones and osteoporosis, older patients may physical symptoms including depression, mood changes, fatigue, muscle, and bone aches and pains, or even cardiac dysrhythmias.

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What is the cost of a parathyroid scan?

How Much Does a Parathyroid Scan Cost? On MDsave, the cost of a Parathyroid Scan ranges from $381 to $1,136. Those on high deductible health plans or without insurance can save when they buy their procedure upfront through MDsave.

Are parathyroid scans accurate?

The 4D Parathyroid CT scan is the newest imaging study to locate an abnormal parathyroid. It is the most accurate of the localization studies.

What does a negative parathyroid scan mean?

A negative scan does NOT mean you don’t have parathyroid disease, it means the scan was not done with enough clarity and resolution to show your tumor, or very commonly, the parathyroid tumor is attached to the back side of the thyroid gland (where it is supposed to be) and you can’t see it on the scan because all you …

Can an ultrasound find a parathyroid tumor?

Ultrasound can find about 60% of parathyroid adenomas (if the scan is actually performed by an endocrinologist or surgeon, or a tech that is experienced in parathyroid ultrasound and who has been told that that is what they are looking for!). However, ultrasound only finds the easy to locate, superficial tumors.

What are the symptoms of hypoparathyroidism?

  • Tingling or burning in your fingertips, toes and lips.
  • Muscle aches or cramps in your legs, feet, stomach or face.
  • Twitching or spasms of your muscles, particularly around your mouth, but also in your hands, arms and throat.
  • Fatigue or weakness.
  • Painful menstrual periods.

Does everyone have a parathyroid?

Everyone has four parathyroid glands, usually located right around the thyroid gland at the base of the neck. About 1 in 100 people (1 in 50 women over 50) will develop a parathyroid gland tumor during their lifetime, causing a disease called “hyperparathyroidism”.

How long does a 4d parathyroid scan take?

A parathyroid CT scan takes about 5 minutes to perform, though you should set aside about one hour, to include registration and preparation time. It can usually be scheduled within 1-2 days of us ordering it.

How do you treat parathyroid disease?

Treatment options for the parathyroid disease include monitoring, medication, dietary supplements, and surgery. Surgery is the most effective option to treat the disease. It involves removing overactive parathyroid glands and can be performed either in a minimally invasive way or by a standard neck exploration.

Can you eat before a parathyroid test?

Fasting (except water) is required for 10 to 12 hours before the test. How the test will feel: When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.

Can you eat before a nuclear parathyroid scan?

Please note that you should not have anything to eat or drink 2 hours prior to your appointment and 2 hours after you take the capsules. You will return to the department approximately 3 hours later for imaging.

How is scintigraphy done?

Scintigraphy is used to diagnose, stage, and monitor disease. A small amount of a radioactive chemical (radionuclide) is injected into a vein or swallowed. Different radionuclides travel through the blood to different organs.

Is parathyroid disease serious?

Is parathyroid disease serious? Hyperparathyroidism is a serious disease that becomes very destructive with time. Over time, it can lead to problems throughout the body, including osteoporosis, high blood pressure, kidney stones, kidney failure, stroke, and cardiac arrhythmias.

What foods to avoid if you have parathyroid?

Eat calcium-rich foods, including beans, almonds, and dark green leafy vegetables (such as spinach and kale). Avoid refined foods, such as white breads, pastas, and sugar.

Does parathyroid cause weight gain?

Parathyroid disease and hyperparathyroidism are associated with weight gain. The worries about gaining weight after parathyroid surgery are understandable but unfounded. It is a myth that parathyroid surgery and removing a parathyroid tumor causes you to gain weight.

How urgent is parathyroid surgery?

Urgent: There are no indications for urgent parathyroidectomy. Elective: Parathyroidectomy should be a planned, elective procedure and the patient’s medical condition should be optimized prior to surgery.

Is parathyroid surgery serious?

The complications from parathyroid surgery are serious, and typically WORSE than the disease. Complications are MUCH more common in general surgeons (and ENT surgeons) who do 35 or fewer parathyroid operations per year.

Is parathyroid surgery considered major surgery?

Parathyroidectomy is a minimally invasive surgery to remove the parathyroid glands or one or more parathyroid tumors from your neck. All patients have minimally invasive parathyroid surgery (ie, a very small incision) to remove the abnormal parathyroid glands. It is as a same day, outpatient procedure.

Can parathyroid affect your eyes?

The commonly described ocular manifestations of hyperparathyroidism include band keratopathy, asymptomatic conjunctival calcification, and conjunctivitis.

Is parathyroid an autoimmune disease?

Autoimmune hypoparathyroidism can occur as part of a larger autoimmune syndrome (complex of diseases occurring together in the same person) that damages many organs of the body or as isolated damage to the parathyroid glands. This may be called the autoimmune polyendocrine syndrome type 1 or APS1.

Should you take vitamin D if you have hyperparathyroidism?

With care, vitamin D supplementation can safely be given to selected patients with asymptomatic primary hyperparathyroidism and is suggested before deciding on medical or surgical management. Monitoring serum calcium concentration and urinary calcium excretion is recommended while achieving vitamin D repletion.

Can you feel a parathyroid tumor when you swallow?

Dysphagia, neck discomfort and sore throat are among common symptoms of parathyroid adenoma. Reports reveal that pain, swelling, tenderness in anterior neck, dysphagia, hoarseness, and ecchymosis are among the usual presentations of parathyroid adenoma.