PMC4712462_01
Chest CT at our hospital showed a tumor in the right posterior mediastinum (arrow). It measured 4.3 cm in diameter and was located beside the 9th thoracic vertebrae
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Fig1
The tumor was 4.3 cm in diameter and was evident on the side of the T9 thoracic vertebrae (Fig. 1).
Chest MRI revealed that the signal intensity of the tumor was low in the muscles in the T1 weighted image (a) and disproportionately high in the T2 weighted image (b). The tumor invaded neither the intervertebral foramen nor the vertebral body
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Fig2
Magnetic resonance imaging (MRI) revealed that the signal intensity of the tumor was low in the T1 weighted image and disproportionately high in the T2 weighted image (Fig. 2).
Operation findings identified a dark red, well-encapsulated, and elastic soft mass in the posterior mediastinum
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Fig3
Surgery revealed that the tumor in the posterior mediastinum was a well-encapsulated, elastic, soft, and dark red mass (Fig. 3).
Microscopic examination showed adipocytes mixed with hematopoietic elements, including megakaryocytes (arrow) and regular granulopoietic and erythropoietin lineage cells
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Fig4