small bowel napkin ring narrowing base of dilated loops small bowel 2 swirl of vascular pedicle root mesentery closed loop obstruction Peterson hernia CT 40M s/p Roux-en-Y gastric bypass 3 months prior abdominal pain vomiting Related LinksGoogle ImagesGoogleYouTubeWikipediaRadiopediaRadiographicsChatGPTOpenEvidence
colon lumbar hernia lumbar hernia CT 60M right back discofort Related LinksGoogle ImagesGoogleYouTubeWikipediaRadiopediaRadiographicsChatGPTOpenEvidence
