Figure 1From: May positron emission tomography reveal ectopic or active thymus in preoperative evaluation of non-thymomatous myasthenia gravis? Positron Emission Tomography images. (A) normal thymus, (B) non-thymomatous myasthenic thymus with elevated standard uptake value, (C) non-thymomatous myasthenic thymus with an area of higher standard uptake value in a perithymic region (arrows).Back to article page