eMedicine Specialties > Radiology > Chest
Mediastinum, Germ Cell Tumors: Multimedia
Updated: Jul 25, 2008
Multimedia
 | Media file 1: Smooth, well-defined anterior mediastinal tumor with heterogeneous attenuation associated with calcific intratumoral nodules suggests a mediastinal teratodermoid. Note also the curvilinear calcification. |
 | Media file 2: Coned view of the superior mediastinum shows a well-defined anterior mediastinal tumor with calcific intratumoral nodules suggestive of a mediastinal teratodermoid. Note also the curvilinear calcification |
 | Media file 3: Patient with asymmetrically placed anterior mediastinal mass. Lateral linear tomogram shows a well-defined, uniformly attenuating mass (not shown), sonogram shows a mass with smooth, uniform echotexture. The patient had not undergone surgery, and findings on follow-up over several years showed little change. |
 | Media file 4: Contrast-enhanced axial CT scan shows an ill-defined anterior mediastinal mass with irregular borders that is infiltrating the mediastinal fat. CT-guided needle biopsy revealed a mediastinal seminoma. |
 | Media file 5: Smooth, well-defined anterior mediastinal tumor with uniform attenuation. At surgery, a mediastinal dermoid was diagnosed. Note the hilum-overlay sign, suggestive of an anterior or posterior mediastinal mass. See also Images 6-7 in Multimedia. |
 | Media file 6: Lateral conventional tomogram in the same patient as in Image 4 shows a smooth, well-defined, uniformly attenuating anterior mediastinal mass with no calcification. |
 | Media file 7: Mediastinal sonogram obtained through the right parasternal area of an anterior intercostal space shows a mass of uniform echogenicity with posterior acoustic enhancement in the same patient as in Images 5-6 in Multimedia. |
 | Media file 8: Lobulated but smooth and well-defined superior mediastinal mass with uniform attenuation. See also Image 9 in Multimedia. |
 | Media file 9: Mediastinal sonogram obtained through the suprasternal notch in the same patient as in Image 11 shows an ill-defined tumor with a heterogeneous echo pattern. At surgery, a teratodermoid was diagnosed. The mass contained small foci of calcification. |
 | Media file 10: Another patient with a biopsy proven anterior mediastinal dermoid extending across both sides of the midline. |
 | Media file 11: Differential diagnosis. Contrast-enhanced CT through the anterior mediastinum shows a minimally enhancing anterior mediastinal mass. At surgery, a malignant thymoma was diagnosed. |
 | Media file 12: Contrast-enhanced CT through the anterior mediastinum shows a minimally enhancing anterior mediastinal mass. At surgery, a malignant thymoma was diagnosed (see also Image 11 in Multimedia). |
 | Media file 13: Differential diagnosis. Mediastinal widening in a child with acute lymphatic leukemia caused by mediastinal lymphadenopathy. |
 | Media file 14: Differential diagnosis. Chest radiograph shows extensive mediastinal lymphadenopathy due to non-Hodgkin lymphoma. |
 | Media file 15: Differential diagnosis. Posteroanterior chest radiograph shows a mass in continuation with the aortic knuckle. Findings on contrast-enhanced CT confirmed that the mass was an aortic aneurysm (not shown). |
 | Media file 16: Contrast-enhanced CT scan obtained through the mediastinum in 56-year-old man shows an infiltrative enhancing tumor. Note the pleural effusion. Biopsy confirmed a sarcomatous-type germ cell tumor. |
 | Media file 17: Posteroanterior chest radiograph and nonenhanced CT scans obtained through the mediastinum in 18-year-old man shows a large tumor involving the anterior, middle, and posterior mediastinum. Note the left pleural effusion. Biopsy confirmed a malignant teratoma. |
 | Media file 18: Differential diagnosis. Posteroanterior (top left) and lateral (top right) chest radiographs and CT scans in mediastinal (bottom left and middle) and bone window (bottom right) show an Askin tumour with bone destruction. |
 | Media file 19: Posteroanterior (left) and lateral (right) chest radiographs show a biopsy-proved posterior mediastinal dermoid. |
More on Mediastinum, Germ Cell Tumors |
| Overview: Mediastinum, Germ Cell Tumors |
| Imaging: Mediastinum, Germ Cell Tumors |
| Follow-up: Mediastinum, Germ Cell Tumors |
 Multimedia: Mediastinum, Germ Cell Tumors |
| References |
| Further Reading |
| « Previous Page |
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Keywords
germ cell tumors, germ cell neoplasm, mediastinal germ cell tumor, GCTs, Klinefelter syndrome, teratoma, seminoma, epidermoid cyst, dermoids, dermoid cyst, mediastinal dermoid
