CT scan 2 PEG 2 buried bumper syndrome complication 2 endoscopy 2 Article 1 Buried bumper syndrome 1 abdominal pain 1 adult 1 carcinoma 1 case report 1 clinical article 1 clinical trial 1 female 1 fistula 1 gastrointestinal disease 1 human 1 image analysis 1 middle aged 1 radical resection 1 stomach antrum 1 stomach mucosa 1 stomach wall 1