PARATHYROID HYPERPLASIA
Male 35 year old with tertiary hyperparathyroidism. Planar images on A, B
and C.Four glands showed abnormal size and vaiable uptake intensity. Upper right
gland best seen on Spect volumetric image (arrows).
This study has over 90% sensitivity and similar specificity to detect either
adenomas (80%), hyperplasia (15%) and parathyroid carcinoma (5%). Adenomas and
carcinomas have more intense uptake than hyperplastic glands.