A black cecum: diagnostic challenges and conservative management

Area of Science:

• Gastroenterology
• Nephrology
• Internal Medicine

Background:

• Type 1 diabetes mellitus and end-stage chronic kidney disease (CKD) on hemodialysis are significant risk factors for vascular complications.
• Ischemic colitis, though rare in this demographic, presents a diagnostic challenge due to non-specific symptoms.

Purpose of the Study:

• To report a case of severe ischemic colitis in a patient with type 1 diabetes mellitus and end-stage CKD.
• To highlight the diagnostic approach and successful conservative management of ischemic colitis in a high-risk patient.

Main Methods:

• Clinical presentation of a 51-year-old male with lower right quadrant abdominal pain and bloodless diarrhea.
• Laboratory findings including leukocytosis and elevated C-reactive protein.
• Diagnostic imaging with abdominal CT and colonoscopy with biopsies.

Main Results:

• Abdominal CT revealed ascending colon thickening and mesenteric fat densification, suggestive of inflammation.
• Colonoscopy showed characteristic black mucosa and ulceration in the cecum, confirming ischemic colitis with necrosis.
• Conservative management with intravenous fluids and antibiotics resulted in clinical improvement.

Conclusions:

• Severe ischemic colitis can occur in patients with type 1 diabetes mellitus and end-stage CKD.
• Prompt diagnosis via colonoscopy and conservative management can be effective in selected high-risk patients.
• Multidisciplinary care involving gastroenterology, nephrology, and internal medicine is crucial for optimal outcomes.