Endocrine Abstracts

Introduction: Collision tumors of the thyroid are neoplasms of distinct histology located within the same gland. Although rare, the most commonly described collision tumors of thyroid origin are medullary and papillary carcinomas. We describe a case of co-existence of a benign follicular adenoma in a dominant nodule with a micropapillary and a micromedullary carcinoma in a patient carrying a heterozygous germline RET polymorphism.Case report: A 74-year-o...

Introduction: Collision thyroid tumors are defined as independent and histologically distinct tumors that coexist within the thyroid gland. Collision thyroid tumors are rare and their prevalence is unknown.Methods: A retrospective, registry-based study was performed by reviewing the electronic medical records of the Department of Endocrinology, Ippokratio General Hospital of Thessaloniki, Greece. All patients with thyroidectomy and thyroid cancer diagnos...