Fig. 1From: Intraoperative parathyroid hormone measurement pitfalls: parathyroid hormone spikes with carboxyl-terminal parathyroid hormone fragments in primary hyperparathyroidism—a case reportImaging findings. A Ultrasonography showed a cystic nodular lesion measuring 4.7 × 2.7 × 2.3 cm. It was unclear whether the lesion was located within or outside the left lobe of the thyroid gland. B Contrast-enhanced computed tomography scan showing an enhanced area (white arrow) of the cystic tumor with undeniable findings of cystic parathyroid adenoma. C A 1.4-g parathyroid adenoma is attached to the left lobe of the thyroid gland. D Parathyroid tissue is composed of clear, follicular, cystic, and follicular cells of various sizes and is diagnosed as a parathyroid adenomaBack to article page