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The authors declare that they have no competing interests.
JB drafted and revised the manuscript. JM contributed to the content of the manuscript and critically reviewed the manuscript. RT contributed to the content of the manuscript and revised the manuscript critically for important intellectual content. AK contributed to the content of the manuscript. GE contributed to the content of the manuscript. RS conceived of the case report, contributed to the content of the manuscript, revised the manuscript critically, and approved the final version for publication. All authors read and approved the final manuscript.
Soft tissue sarcomas are uncommon tumors, and intraduodenal soft tissue sarcoma manifestation is even more rare. Only three cases of intraduodenal sarcomas have been reported in the literature thus far. Here, we report a case of an intraduodenal recurrence of a retroperitoneal sarcoma causing bowel obstruction. This unusual recurrence pattern likely relates to the patient’s previous resection and radiation treatment, and highlights the benefits, limitations and follow-up strategies after multimodality treatment.