Case Presentation: 39-year-old female with a history of ulcerative colitis (UC), but not on therapy, presented with abdominal pain and hematochezia for two weeks, along with weight loss and night sweats. On admission, vital signs were notable for tachycardia and physical examination revealed a diffusely tender abdomen. Laboratory studies were remarkable for leukocytosis of 23,250/mm3. [...]