Management of Ulceroproliferative Duodenal Lesion in CKD Patient on Dialysis

Diagnostic Considerations

• The American College of Radiology suggests that duodenal masses with ulceroproliferative features warrant aggressive investigation, as malignancy is now the most common cause of gastric outlet obstruction in adults 2.
• The presence of thickened edematous mucosa, polypoid lesions, and ulceroproliferative changes extending across multiple walls is atypical for simple peptic ulcer disease and suggests either severe complicated ulcer disease or neoplasm 3, 4.

Immediate Management

• The American College of Radiology recommends checking for signs of perforation immediately, as CT findings of duodenal wall thickening combined with severe abdominal pain and bilious vomiting require evaluation for extraluminal gas, fluid or fat stranding, ascites, and focal wall defect 4, 2.
• Perforation carries mortality rates up to 30% if treatment is delayed, and peritonitis requires emergent surgical intervention 1, 2.

Supportive Care

• The National Comprehensive Cancer Network suggests that nutritional assessment and support is essential given the severe presentation, bilious vomiting, and underlying CKD 5.
• Consider gastrostomy tube placement if prolonged inability to tolerate oral intake develops 5.

Differential Diagnosis

• Duodenal adenocarcinoma presents with ulceroproliferative lesions, nodular or irregular wall thickening, and polypoid features as seen in this patient 6, 2.
• Gastrinoma should be considered given the extensive ulceration in D2, particularly if multiple ulcers are present or if ulcers recur despite appropriate therapy 7.

Monitoring and Follow-Up

• Histopathology will determine definitive management: malignancy requires oncologic consultation, while benign ulcer disease continues medical therapy 1, 2.
• Gastric ulcers heal in 70-80% and duodenal ulcers in 80-90% of patients with 4-8 weeks of PPI therapy 2.

Critical Pitfalls to Avoid

• Never assume benign peptic ulcer disease without histologic confirmation when ulceroproliferative features and polypoid lesions are present 6, 1, 2.
• Do not delay imaging or surgical consultation if peritoneal signs develop, as perforated ulcer mortality increases significantly with delayed diagnosis 4, 2.
• Do not overlook gastrinoma in patients with severe or multiple duodenal ulcers, particularly if ulcers recur despite appropriate therapy 7.
• Avoid NSAIDs completely, as they worsen peptic ulcer disease and increase bleeding risk 2.