CT-scan of the thorax

A CT scan of the thorax to exclude underlying thymoma is relevant in myasthenia gravis. 

For dedicated examinations of unclear, potentially benign liver lesions and for hepatic staging prior to liver surgery, MRl can be recommended as the method of choice. In case a CT scan has already been performed (e.g. a staging CT scan of the thorax and abdomen), MRI should not be omitted if the intra-hepatic findings have direct influence on the further treatment. MDCT is suitable for all emergency situations, since it allows for easy patient access and is associated with very short acquisition times, so that uncooperative or clinically unstable patients can be easily examined. 

Fig.5.7a-c. A 56-year-old tunnel blaster with simple silicosis and lung cancer who was evaluated with multi-slice computed tomography (CT) scan of the thorax (2.5-mm sUce thickness) with retrospective reconstruction into 1.25-mm thin-section CT scans, a CT scan (2.5-mm thickness) shows small centri-lohular nodules in hoth lungs, with an irregular mass in the superior left hilum. b Thin-section CT scan (1.25-mm thickness) at the same level as a was reconstructed from the multidetector CT data set. c CT scan (2.5-mm thickness) in mediastinal window shows enlarged mediastinal lymph nodes with dense (arrowheads) and eggshell (arrows) calcification... 

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