A Rare Case of Osteosarcoma Metastasis to the Small Bowel Causing Intussusception in a Pediatric Patient: A Case Report and Review of Literature

Abstract

Osteosarcoma, a type of bone cancer, predominantly metastasizes to the lung and bone. However, rare instances of metastasis to the small bowel have been documented. Cases involving metastasis to atypical sites such as the small bowel are associated with poor prognosis, as the majority also present with concurrent lung metastasis. Intussusception, a condition in which a segment of the intestine folds into another, has been reported in a limited number of cases involving small bowel metastasis, with only four documented cases in pediatric patients, including the current case. While intussusception is primarily idiopathic in pediatric patients, those with oncological diseases represent a unique subgroup. Medical professionals should maintain a high level of suspicion for the presence of metastasis as a leading point in such cases and conduct timely, thorough evaluations to confirm or rule out this possibility.