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Figure 13b. Periportal plexiform neurofibromas and bilateral pheochromocytomas in a 44-year-old man with NF1 and uncontrolled hypertension. Intravenous contrast-enhanced CT scans (a obtained at a higher level than b) show a low-attenuation plexiform neurofibroma infiltrating through the hepatic hilum and periportal spaces throughout the liver (arrowheads). There are bilateral mixed-attenuation pheochromocytomas (arrows).
