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(a–c): CT and MRI of parathyroid adenoma in a patient with primary hyperparathyroidism. (a) Late venous phase 4DCT shows a well defined oval-shaped hypodense lesion (arrowhead) measuring 0.9 × 0.8 cm posterior to the inferior pole of right lobe of thyroid gland, suggestive of parathyroid adenoma. T2WI (b) shows intermediate signal intensity of the parathyroid adenoma, which shows intense post-contrast enhancement (arrowhead in (c)).
