title: Mediastinal teratoma confused with loculated pleural fluid.
abstract: A 3-year-old child is presented with a benign anterior mediastinal teratoma that was primarily located inferior to the left lung and confused with pleural fluid. The lesion was not apparent at 4 months ofage. Computerized axial tomography of the specimen clearly established the diagnosis. This procedure may be of value in selected patients with apparent pleural disease.
mesh_terms: D002675:Child, Preschool; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging*; D010998:Pleurisy / Q000000981:diagnostic imaging*; D013724:Teratoma / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed