🎯 MRI: Marked dural ectasia with pronounced posterior vertebral body scalloping. 🎯 Dural ectasia and posterior vertebral body scalloping are classical features of neurofibromatosis type 1, a diagnosis this patient had established during childhood. Other causes of dural ectasia include Marfan syndrome and Ehlers-Danlos syndrome. 👤 Case courtesy of Frank Gaillard, Radiopaedia.org, rID: 201533 https://radiopaedia.org/cases/dural-ectasia-4