PMC4309346_01
Pretreatment CT shows a solid soft tissue mass (95 x 75 x 112 mm) in the upper
mediastinum, with leftward displacement of the trachea and complete obstruction of the
superior vena cava.
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Computed tomography (CT) of the chest revealed a solid soft tissue mass (95 x 75 x 112 mm) [in diameter] in the upper mediastinum, as well as a leftward displacement of the trachea and complete obstruction of the superior vena cava (Figure 1).
Biopsy specimen from a right subclavicular lymph node. Well-defined tumor cells with
large nuclei and clear nucleoli and a large clear reticulum are formed as map-like
alveolar tumor cells. Cobblestone growth can be seen with lymph node involvement
surrounding the alveolar tissue.
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Biopsy of the right subclavicular lymph nodes revealed metastatic seminoma (Figure 2 ), and the patient was referred for chemotherapy.
Posttreatment CT shows less enhancement of a smaller soft tissue mass (30 x 18 x 36
mm).
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On completion of the chemotherapy, the evaluable lesions were considered to represent a "stable disease" (Figure 3).