Vitamin B12 deficiency presenting as intestinal pseudo-obstruction in short bowel syndrome: A case report

•Vitamin B12 is essentially absorbed in the terminal ileum and may be deficient in children with short bowel syndrome.•Children with type 2 short bowel syndrome are at increased risk of vitamin B12 deficiency especially after parenteral nutrition weaning.•Vitamin B12 deficiency may present with autonomic neurological involvement such as defects in gastrointestinal motility.•When intestinal absorption is not possible vitamin B12 may be administred sublingual.