The ingestion of foreign bodies—such as dental prostheses, fish bones, screws, or surgical devices—is a rare event; however, it can result in significant morbidity, including intestinal perforation (IP), peritonitis, sepsis, and even death. This scenario typically necessitates surgical intervention in the majority of affected patients. Regarding the ingestion of bivalve mollusk shells (IBMS), approximately six cases have been reported worldwide. The aim of this manuscript was to report a case of intestinal perforation (IP) caused by bivalve mollusk valve ingestion (BMVI), describe its clinical characteristics, postoperative course, and findings from the related literature. Patient: A 70-year-old woman presented with distal ileum perforation. The diagnosis was confirmed by computed tomography, and she underwent early surgical intervention via laparotomy, which included intestinal resection and enteroenteric anastomosis. The shell fragment was identified and removed along with the affected intestinal segment. Postoperative recovery was satisfactory, with no complications, and the patient was discharged on the fourth day. The ingestion of a foreign body—particularly BMVI—is an uncommon event compared to other causes of IP. Timely diagnosis and treatment are essential, as any delay in diagnosis may lead to an unfavorable prognosis.

KEY WORDS: Intestinal Perforation; Intestinal Perforation/etiology; Bivalve mollusk shells; Case report.