Parathyroid Carcinoma Shown on 99mTc-Sestamibi Parathyroid SPECT/CT Scan in a Pediatric Patient.

A 10-year-old boy presented with back pain. Tc-methylene diphosphonate bone scan demonstrated the sign of metabolic bone disease, suspected due to hyperparathyroidism. Tc-sestamibi parathyroid SPECT/CT demonstrated focal lesion in the lower pole of the right lobe. The pathological examination demonstrated parathyroid carcinoma, which is very rare in pediatric population.