Segmental Colitis Associated With Diverticulosis Causing Hydroureteronephrosis.

Segmental colitis associated with diverticulosis (SCAD) is a rare inflammatory condition affecting segments of the colon with diverticular disease. We present an 85-year-old woman with flank pain, fevers, and chills found on imaging to have left colonic wall thickening and left-sided hydroureteronephrosis and workup confirming a diagnosis of SCAD. A detailed review of SCAD and discussion of the differential diagnosis are provided. This case emphasizes disease-specific clinical pearls and highlights hydroureteronephrosis as a rare complication seen in a patient with SCAD.