Mediastinal lesions in children

Figure 19  A 14-year-old male patient with Kleinefelter syndrome. He has been complaining of pain in the left arm and shoulder for 3 d. A: Posteroanterior chest radiograph shows calcifications (double blue arrow) that erases the contour of the heart; B: Diaphragm on the left and the density of a mass located in the anterior mediastinum on the lateral radiograph (blue arrow); C: In the axial computed tomography images of the same patient, a lobulated mass lesion with calcification, fluid and fat densities, located in the left anterior mediastinum, adjacent to the thymus is observed (blue arrow); D: Pericardial and pleural effusion are present in the inferior slices of the same patient (green arrow). In addition, basal linear atelectasia is (double orange arrow).