Where is the abnormality?
The pathology is centred on the proximal-sigmoid colon. There is fat-stranding and a small amount of adjacent free fluid. Multiple diverticula are seen.
What is the diagnosis?
The fat-stranding is centered on the fat-density lesions that sit on the lateral wall of the sigmoid colon, not on the diverticula (of which there are many). The ovoid fat-density lesions with central high attenuation sitting on the lateral margin of the sigmoid colon represent epiploic appendagitis.
What does the high density central focus represent?
The thrmobosed vessel of the epiploica.
Background sigmoid diverticulosis. Fat density lesion on the lateral aspect of the proximal-sigmoid colon with a central area of high attenuation and surrounding fat corruption; features consistent with epiploic appendagitis.