Failed Switching off in the MIBI-Parathyroid Scintigraphy in a Dialyzed Patient with Secondary Hyperparathyroidism Responsive to Cinacalcet Therapy
Table 2
(a) Scintigraphic and echographic features at the start before calcimimetic administration
Basal study
-MIBI scintigraphy:
2 parathyroid glands
scintigraphic features
(1) Focal area of increased radiotracer uptake was present posteriorly to the lower pole of the right thyroid lobe
(2) Another smaller area of increased radiotracer uptake was present inferiorly to the lower pole of the left thyroid lobe
CD ultrasound:
2 parathyroid glands
Echographic features
(1) Nonhomogeneous hypoechoic capsulated area with a vascular pole was present posteriorly to the lower pole of the right thyroid lobe. The major three axes of the parathyroid glands were mm
(2) Non homogeneous hypoechoic capsulated area with a vascular pole was present inferiorly to the lower pole of the left thyroid lobe. The major three axes of the parathyroid gland were mm
(b) Scintigraphic and echographic features after one year of calcimimetic administration
After 1 year of cinacalcet therapy
-MIBI scintigraphy
2 parathyroid glands
Scintigraphic features
The focal areas of increased radiotracer uptake were unmodified respect to basal control.
CD ultrasound
2 parathyroid glands
Echographic features
(1) Echographic structure of the lesion present posteriorly to the lower right pole of the thyroid lobe was unmodified. The major three axes of the parathyroid gland were mm
(2) Echographic lesion inferiorly to the lower pole of the left thyroid lobe was unmodified respect to basal control