Opportunistic Parathyroid Gland Assessment on Routine CT Could Decrease Morbidity from Undiagnosed Primary...

Area of Science:

• Endocrinology
• Radiology
• Medical Diagnostics

Background:

• Primary hyperparathyroidism diagnosis is often delayed, leading to significant end-organ damage.
• Disease duration correlates with morbidity, frequently occurring before diagnosis.

Purpose of the Study:

• To assess the feasibility of detecting enlarged parathyroid glands on routine CT scans.
• To evaluate if opportunistic parathyroid assessment on CT can reduce diagnostic gaps and subsequent morbidity.

Main Methods:

• Retrospective analysis of contrast-enhanced CT scans from patients with primary hyperparathyroidism prior to biochemical screening.
• Neuroradiologist evaluation of CTs for enlarged parathyroid glands (estimated weight > 60 mg).
• Correlation of CT findings with operative/pathology reports and review of medical records for comorbidities.

Main Results:

• Enlarged parathyroid glands were identified on CT in 76% of patients, a median of 30 months before biochemical screening.
• CT findings correlated with pathologically proven lesions in 90% of cases.
• Among patients with identified lesions, 46% developed comorbidities before diagnosis.

Conclusions:

• Enlarged parathyroid glands are often visible on routine CT scans years before diagnosis.
• Implementing biochemical screening based on CT findings could prevent morbidity in a substantial proportion of patients.