Parathyroid carcinoma: Three case reports

Figure 3 Parathyroid adenocarcinoma of the lower right lobe of the thyroid gland in a 65-year-old woman. A: Doppler ultrasound revealed a solid nodule with an inhomogeneous echostructure; B: Color doppler flow imaging indicated multiple spots and strips of blood flow signals were observed in the nodules; C: Parathyroid tumor with an unclear local capsule. A vascular tumor thrombus can be seen.