Intraperitoneal focal fat infarction (IFFI) refers to a group of self-limiting abdominal diseases where the primary insult is acute inflammation of intraperitoneal fat.
The group includes:
- epiploic appendagitis
- omental infarction: can be primary (usually RLQ) or secondary (site of insult)
They share common risk factors, including obesity, recent abdominal surgery, and trauma.
Differentiating Appendagitis vs Omental infarct:
- usually smaller, ovoid area
- hyperdense central dot (thrombosed vessel)
Diverticulitis: Diverticulae can arise from any hollow structure!
- Gastric, Small bowel (duodenum/jejunum/ileum/Meckel's), Colon
- Gallbladder, Urinary bladder
