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Introduction <p>Small bowel metastasis from primary lung cancer is a rare occurrence, and jejunojejunal intussusception secondary to metastatic lung cancer is even rarer.</p> Case presentation <p>We report the case of a 56-year-old Caucasian man diagnosed with metastatic adenosquamous carcinoma of the lung who presented with jejunojejunal intussusception secondary to small bowel metastasis from his lung cancer. He underwent emergency segmental resection. Histological examination of the specimen revealed metastasis originating from the adenocarcinomatous component of the lung adenosquamous carcinoma. Unfortunately, the patient was lost to follow-up during palliative chemotherapy.</p> Conclusion <p>This case highlights the importance of considering intussusception caused by gastrointestinal metastases in the differential diagnosis of patients with lung carcinoma presenting with abdominal pain or other gastrointestinal symptoms. Surgical intervention is often necessary in such cases. Intussusception indicates a poor prognosis in patients with lung carcinoma, regardless of the management strategy employed.</p>

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Metastatic de novo lung cancer presenting as acute jejunojejunal intussusception: an unusual case report

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年11月27日

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  • Marwa Aloui,
  • Saida Sakhri,
  • Mohamed Ali Ayadi,
  • Nadia Boujelbene,
  • Ines Zemni,
  • Tarek Ben Dhiab

摘要

Introduction

Small bowel metastasis from primary lung cancer is a rare occurrence, and jejunojejunal intussusception secondary to metastatic lung cancer is even rarer.

Case presentation

We report the case of a 56-year-old Caucasian man diagnosed with metastatic adenosquamous carcinoma of the lung who presented with jejunojejunal intussusception secondary to small bowel metastasis from his lung cancer. He underwent emergency segmental resection. Histological examination of the specimen revealed metastasis originating from the adenocarcinomatous component of the lung adenosquamous carcinoma. Unfortunately, the patient was lost to follow-up during palliative chemotherapy.

Conclusion

This case highlights the importance of considering intussusception caused by gastrointestinal metastases in the differential diagnosis of patients with lung carcinoma presenting with abdominal pain or other gastrointestinal symptoms. Surgical intervention is often necessary in such cases. Intussusception indicates a poor prognosis in patients with lung carcinoma, regardless of the management strategy employed.