Use of dual-energy computed tomography to detect mycoplasma-related pulmonary embolism and splenic infarction

Abstract

A 12-year-old boy with dyspnea secondary to pneumonia and left pleural effusion was referred to our hospital. Although his fever, cough, and dyspnea gradually subsided after antibiotic treatment [amoxicillin-clavulanic acid (90 mg/kg/day) and azithromycin (10 mg/kg/day)] and pleural effusion drainage, he complained of an acute and newly onset chest pain at rest 3 days after. Electrocardiography revealed sinus tachycardia despite normal serum cardiac enzyme levels. Additionally, repeat chest radiography revealed a Palla's sign on the right side (Fig. 1A).