The initial investigation for<unk> n be a plain x-ray without contrast, or a CT scan. CT scan is useful in diagnosing volvulus when x-ray has been unfruitful. CT can also identify the level of obstruction and determine if bowel necrosis has occurred.
Volvulus CT
Volvulus MRI
Volvulus x ray
Appendicitis CT
Appendicitis MRI
Appendicular abscess CT
Appendicitis x ray
Appendicitis ultrasound