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A 64-year-old woman without symptoms underwent routine chest radiography, which revealed a well-circumscribed, low-density mass that measured 8 cm in diameter and rendered the right cardiophrenic angle opaque (Panel A, arrow). The lateral view identified the anterior position of the mass (Panel B, arrow). As part of the differential diagnosis, the possibility of a large pericardial fat pad or a Morgagni's hernia was considered; the presence of lymphoma or middle-lobe atelectasis was considered less probable. Contrast-enhanced, multislice computed tomography with parasagittal reconstruction identified a nonenhancing fatty tumor (Panel C, asterisk) with a connection to the mesenteric fat through a small . . . [Full Text of this Article] |
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