Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Numbers of parathyroids lying close to the inferior laryngeal nerve and their blood supply.
| left SPG | left IPG | right SPG | right IPG | |
|---|---|---|---|---|
| Proximity to ILN | 63 (81.8%) | 50 (65.8%) | 64 (84.2%) | 56 (63.6%) |
| Type of blood supply | 22 a (35%) | 38 a (76%) | 41 a (64%) | 46 a (82%) |
| 20 b (32%) | 5 b (10%) | 15 b (23%) | 4 b (7%) | |
| 21 × (33%) | 7 × (14%) | 8 × (13%) | 6 × (11%) |
