Are there any worrisome signs for complications?
Yes, extra-luminal air pockets, impressive of a small / contained perforation.
There is asymmetric colonic wall thickening seen involving a short segment of sigmoid colon, suggestive of a neoplastic process. There is an associated bubbly appearance of multiple rounded air-containing diverticula (in keeping with colonic diverticulosis) as well as peri-colic fat stranding and poorly-defined area of hazy increase in attenuation value of mesenteric fat (in keeping with diverticulitis).