Parathyroid carcinoma in pregnancy

Figure 1 Doppler ultrasound of parathyroid gland showing well-defined hypoechoic mass with color signals of few surrounding vascular structures and Tc-99m sestamibi planar scan with pinhole collimator, 10 min post injection.

Figure 2 Pathology image of atypical adenoma. A: No significant remodeling of stroma cells or polymorphism, tumor cells are monotonous, small cells with focal cytological atypia without mitotic figures; B: Pathology image of atypical adenoma with tumour cells infiltrating thick fibrous capsule.

Figure 3 Doppler ultrasound of parathyroid carcinoma: small solitary mass in the area of previous surgery.

Figure 4 Pathology image of parathyroid carcinoma. A: Mitotic cells; B: Infiltrating skeletal muscle.

Figure 5 Positron emission tomography/low-dose X-ray computed tomography (positron emission tomography/low-dose computed tomography) with F-18 FDG. Focal accumulation is observed in enlarged lymph nodes of the right axillary region and diffuse uptake is observed in the right breast.