Medullary and Papillary Carcinomas Occurring as a Collision Tumor: Report of a Case

Authors:
  • SLStanley Lipper
    Stanley Lipper
  • ACAnn E. Chernys
    Ann E. Chernys
  • LSLawrence Silver
    Lawrence Silver

Abstract
Multiple thyroid carcinomas of divergent cellular origin are extremely rare. A case is presented in which two unrelated tumors, a medullary carcinoma and a papillary carcinoma, occurred as a collision tumor.

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