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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.
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©2013 UpToDate ® Print Email CT scan thymoma with atypical elements The patient is a 56-year-old man who presented with an abnormal chest x-ray. The CT scan through the chest is projected in transverse plane (A) showing a mass with a calcification, magnified and highlighted in B (red arrow). Image C shows regions of low density in the mass (green arrows) corresponding to lack of metabolic activity in D (green arrows) and likely reflecting necrosis. Pathology revealed type C thymoma of the WHO classification with multifocal invasion through the capsule and into the pericapsular adipose lung parenchyma and pericardium. WHO: World Health Organization. Courtesy of Andrew Kriegel, MD.