Subacute thyroiditis complicating dengue fever - Case report and brief review of literature.

The spectrum of dengue infection illness ranges from mildly symptomatic disease to severe forms of dengue haemorrhagic fever and dengue shock syndrome. Expanded dengue syndrome refers to unusual complications involving gastrointestinal, hepatic, neurological, pulmonary and renal systems. Subacute thyroiditis represents a very rare and under-recognised complication of dengue. We report a case of a 38-year-old female presenting with recurrent fever and throat pain following an episode of dengue. After detailed clinical examination, biochemical evaluation and imaging studies, a diagnosis of subacute thyroiditis complicating dengue was made. We discuss its clinical course and management in this report. Only four such cases have previously been reported in literature. Subacute thyroiditis may represent another rare facet of dengue expanded syndrome.