The goal of this observational study is to diagnose colorectal cancer or precancerous tumors in participants over the age of 18 hospitalized with blood stream infection with anaerobic gut-associated bacteria. The main question it aims to answer is:
• How prevalent is cancer and precancerous tumors in the large intestines and rectum in patients with anaerobic bacteremia? Participants will be offered an examination using colon capsule endoscopy 4-8 weeks after discharge.
Older than 18 years
Blood culture with growth of one or more of the following bacterial genera Bacteroides, Clostridium, Filifactor, Fusobacterium, Gemella, Granulicatella, Parvimonas, Peptostreptococcus, Prevotella, Solobacterium, Peptoniphilus, Ruminococcus, Finegoldia and Streptococcus.
Able to provide oral and written informed consent
Able to read and speak Danish
Prior colorectal cancer diagnosis
History of stenosis of the gastrointestinal tract
Previous treatment of inflammatory bowel disease
Previous major surgery of the gastrointesinal tract (e.g. gastric bypass)