This cover image is based on the Clinical Case Report entitled Right ventricular dysfunction secondary to hyperthyroidism with total reversal after thyroidectomy: case report by Dra. Alfredo Aurélio Marinho Rosa Filho and colleagues. This article reported describe a case report of a 40-year-old woman with right ventricular dysfunction and pulmonary hypertension due to hyperthyroidism, which was successfully treated with total thyroidectomy