Primary carcinoma of the duodenum

Area of Science:

• Gastroenterology
• Surgical Oncology
• Oncology

Background:

• Primary adenocarcinomas of the duodenum are rare gastrointestinal malignancies.
• Understanding their clinical presentation, diagnosis, and treatment outcomes is crucial for improving patient prognosis.

Purpose of the Study:

• To review the clinical characteristics, diagnostic methods, surgical treatments, and survival rates of primary duodenal adenocarcinomas.
• To identify factors influencing patient survival and evaluate different surgical approaches.

Main Methods:

• Retrospective review of 66 patients with primary duodenal adenocarcinoma diagnosed between 1958 and 1973, as recorded by the Swedish Cancer Register.
• Analysis of patient demographics, presenting symptoms, diagnostic modalities (barium meal, hypoton duodenography, duodenoscopy), metastasis status, surgical interventions (radical vs. palliative), operative mortality, and survival data.

Main Results:

• The mean patient age was 66 years, with a female:male ratio of 1.2:1.0. Duodenal obstruction was the predominant symptom.
• Conventional barium meal examination achieved a correct diagnosis in 68% of cases; hypoton duodenography and duodenoscopy were identified as necessary aids. Diagnosis was made postmortem in 25% of patients.
• Metastases were present at initial diagnosis in 32 patients. Radical surgery was performed in 43%, and palliative surgery in 43%. Operative mortality for curative operations was 25%, with pure polyp extirpation showing no mortality.
• Overall one-year survival was 67%, and five-year survival was 18%. Distally located carcinomas and duodenopancreatectomy were associated with longer survival times compared to duodenal resection.

Conclusions:

• Primary duodenal adenocarcinomas present with significant diagnostic challenges, often with advanced disease at diagnosis.
• Surgical management, including radical resection and specific techniques like duodenopancreatectomy, plays a critical role in survival, although operative mortality remains high.
• Further improvements in diagnostic accuracy and surgical techniques are warranted to enhance outcomes for patients with duodenal adenocarcinoma.