‹ Knowledge base
Browse the corpus
Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.
1 passage
contentuptodate· Content· item f33_9_33940
©2013 UpToDate ® Print Email The "banana" sign The cerebellum as it herniates through the foramen magnum takes up the shape of a banana (arrows). When both the lemon and banana signs are seen together, an open spinal defect is present. Courtesy of Ana Monteagudo, MD.