9 doctors weighed in:
Do I have just one bad parathyroid gland? 
9 doctors weighed in

Dr. Quang Nguyen
Internal Medicine - Endocrinology
5 doctors agree
In brief: Usually
Usually it's one gland that has the adenoma but you can also have a condition called parathyroid hyperplasia where all 4 glands are enlarged.
You only need 1/2 of a parathyroid gland to function normally, that is, 1/2 out of 4 glands.

In brief: Usually
Usually it's one gland that has the adenoma but you can also have a condition called parathyroid hyperplasia where all 4 glands are enlarged.
You only need 1/2 of a parathyroid gland to function normally, that is, 1/2 out of 4 glands.
Dr. Quang Nguyen
Dr. Quang Nguyen
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Dr. Brendan Stack Jr.
Surgery - Head & Neck
1 doctor agrees
In brief: Typically it one
Here's a reference for you: 1: Ruda JM, Hollenbeak CS, Stack BC Jr. A systematic review of the diagnosis and treatment of primary hyperparathyroidism from 1995 to 2003.
Otolaryngol Head Neck Surg. 2005 Mar;132(3):359-72. Review. PubMed PMID: 15746845.

In brief: Typically it one
Here's a reference for you: 1: Ruda JM, Hollenbeak CS, Stack BC Jr. A systematic review of the diagnosis and treatment of primary hyperparathyroidism from 1995 to 2003.
Otolaryngol Head Neck Surg. 2005 Mar;132(3):359-72. Review. PubMed PMID: 15746845.
Dr. Brendan Stack Jr.
Dr. Brendan Stack Jr.
Thank
In brief: Depends
Hyperparathyroidism is 85-90% from one gland but 15-20% of patients have more than one gland.
That's why experienced surgeon is important.

In brief: Depends
Hyperparathyroidism is 85-90% from one gland but 15-20% of patients have more than one gland.
That's why experienced surgeon is important.
Dr. Peter Mowschenson
Dr. Peter Mowschenson
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Dr. David Rosen
Internal Medicine - Oncology
In brief: Double adenoma
Double adenomas can be seen in about 10% of patients.
It is important that your surgeon either uses intra operative PTH monitoring or explores all 4 glands to make sure there isn't a double adenoma.

In brief: Double adenoma
Double adenomas can be seen in about 10% of patients.
It is important that your surgeon either uses intra operative PTH monitoring or explores all 4 glands to make sure there isn't a double adenoma.
Dr. David Rosen
Dr. David Rosen
Thank
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