Rectal insertion of expanding polyurethane foam requiring sigmoid colectomy: A case report with surgical and toxicologic implications.

Rectal foreign body insertion is a well-described phenomenon in the emergency department (ED). Here, we present a case of a 64-year-old male who presented to a community ED after rectal insertion of a two-part expanding polyurethane foam sealant. The sealant had hardened and adhered to the colonic mucosa, necessitating surgical intervention and colostomy creation. This case highlights the dual risks-both chemical and structural-posed by polyurethane foam sealant and illustrates the importance of early imaging and multidisciplinary evaluation.