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Alectinib-associated pneumoperitoneum in stage IV non-small cell lung cancer - A case report
Renee M Maina1, Caroline A Rader2, Clarisse S Muenyi1
1Department of Surgery, University of Tennessee Health Science Center, Memphis, TN, USA.
Introduction And Importance:
Alectinib, a highly potent, highly selective, brain-penetrant anaplastic lymphoma kinase (ALK) inhibitor is now the first line therapy for patients with metastatic ALK-positive non small cell lung cancer (NSCLC).
Case Presentation:
We report a rare case of pneumoperitoneum following alectinib initiation for metastatic non small cell lung cancer in a 74-year-old African American female. Patient developed abdominal pain approximately 2 weeks after starting alectinib. She was hemodynamically stable, and imaging revealed pneumoperitoneum. Patient was successfully managed non-operatively.
Clinical Discussion:
Gastrointestinal perforation presenting as pneumoperitoneum is a very rare complication of alectinib. To our knowledge our patient is only the second case to be reported in the literature since its approval. The complication is likely attributable to the rapid tumor regression in the gastrointestinal tract. Non-operative management should be attempted if possible.
Conclusion:
Oncologists should be aware of the risk of gastrointestinal perforation when initiating cytotoxic chemotherapy on patients with metastatic NSCLC. A multidisciplinary approach is critical in appropriately individualizing care in this patient population.
