Subacute thyroiditis-an unusual endocrine cause of pyrexia of unknown origin: Case report with review of literature

Abstract

We report a case of a 58-year-old male who presented with high grade fever of 45 days duration. He had presented with a dry cough and right ear pain. His initial clinical evaluation and diagnostic tests were unremarkable. During the hospital stay, he developed palpitation for which tests for thyroid functions were done which revealed subacute thyroiditis. He recovered fully with the treatment. Subacute thyroiditis is one of the rarely mentioned causes of Pyrexia of Unknown origin. A high index of suspicion and appropriate imaging is required for early diagnosis and management.