CGA and medullary thyroid gland carcinoma: This review [11] confirmed the previous one [10]: (i) only 56% (12/23) of cytological specimens suggested MTC; (ii) definitive pathology detected 18 cases of well differentiated MTC, and 8 cases of poorly differentiated MTC, while the cancer grade was not stated in the remaining cases; (iii) on IHC, 55% (21/38) showed diffuse or focal positivity for Ctn, while 95% (41/43) were positive for CgA; (iv) follow-up identified 11 patients as cured, while 7 had a recurrence (involving multiple organs in 2), and 9 died of their disease.