Endocrine Abstracts

Collision tumors (CT) refers to the coexistence of two histologically distinct malignant tumors within the same mass. CT involving the thyroid gland (TG) and/or the neck are specially uncommon and present a diagnostic and treatment challenge.Case report: A 69-year-old male presented with a one year history of bilateral cervical lymph node growth, a four-month history of progressive dysphagia and a dyspnea associated with a rapidly expanding, painless mas...