Primary malignant duodenal tumors

Area of Science:

• Gastroenterology
• Surgical Oncology
• Oncology

Background:

• Primary malignant duodenal tumors are rare, presenting diagnostic and therapeutic challenges.
• Adenocarcinomas and malignant lymphomas represent the main histological types.

Purpose of the Study:

• To evaluate diagnostic procedures, surgical resectability, and survival rates for primary malignant duodenal tumors.
• To determine the impact of lymph node involvement on patient outcomes.

Main Methods:

• Retrospective analysis of 14 patients with primary malignant duodenal tumors.
• Review of preoperative diagnostic methods including imaging, duodenoscopy, and arteriography.
• Assessment of surgical outcomes (resectability, mortality) and survival rates.

Main Results:

• Resectability rate for duodenal carcinoma was 66.7%, with a 14.2% five-year survival rate.
• Positive lymph node involvement significantly reduced survival time after Whipple resection.
• Malignant duodenal lymphoma showed a 50% tumor-free rate at two years with combined therapy.

Conclusions:

• Early diagnosis is key for curative surgery in duodenal tumors.
• Positive lymph node status should generally preclude resective surgery due to higher mortality.
• Combined surgical and chemotherapeutic approaches offer promising results for malignant duodenal lymphoma.