[Medullary thyroid carcinoma: evolution of concepts].

Abstract

This article analyses in a large overview several of the actual problems encountered by pathologist in the management of MTC whatever the diagnostic circumstances. We insist on difficulties upon C cell hyperplasia and early detected disease. Unusual MTC cases are discussed. The need for large multidisciplinary group in studying such tumors is underlined with reference to the French GETC (Groupe d'Etude des Tumeurs à Calcitonine).