1. Persistent Primary Hyperparathyroidism: Successful Ultrasound-Guided Percutaneous Ethanol Ablation of an Occult Adenoma 
J. WILLIAM CHARBONEAU, M.D. 
Mayo Clinic Proceedings 
Volume 63, Issue 9, Pages (September 1988)
DOI: /S (12)
Copyright © 1988 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
A, High-resolution ultrasound image of lower pole of right thyroid lobe, demonstrating heterogeneous parenchyma containing a 0.8-cm round hypoechoic nodule (black arrows). Within this nodule is a bright echogenic focus representing tip of needle (white arrow). B, Hypoechoic nodule shown in A became hyperechoic at moment of injection of alcohol (ETOH) (black arrows).
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1988 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Fig. 2
Serial changes in serum calcium level in patient who underwent percutaneous ethanol ablation of occult adenoma. Shaded area = range of normal values.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1988 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Fig. 3
Serial changes in serum level of parathyroid hormone (PTH), as measured by radioimmunoassay (RIA), in patient who underwent percutaneous ethanol ablation of occult adenoma. Shaded area = range of normal values.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1988 Mayo Foundation for Medical Education and Research Terms and Conditions

5. Fig. 4
Serial changes in serum level of parathyroid hormone (PTH), as measured by immunoradiometric assay (IRMA), in patient who underwent percutaneous ethanol ablation of occult adenoma. Shaded area = range of normal values.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1988 Mayo Foundation for Medical Education and Research Terms and Conditions