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Histopathologic Findings of Button Battery-Related Changes in a Perforated Meckel's Diverticulum: Report of Three Cases.

Background: A button battery can cause perforation of Meckel's diverticulum if sequestered in this blind ending bowel segment. Reported cases focused on clinical manifestations, management options, radiologic and intraoperative findings. We highlight the histopathologic features in perforated Meckel's diverticula due to ingested button batteries. Case report: Three toddlers presented with perforated Meckel's diverticula after button battery ingestion. Histologic examination of the diverticula showed multiple burn-like mucosal ulcerations and liquefactive wall perforations of the tips, associated with prominent siderotic pigment deposits and calcifications. There were various residual materials with variable staining patterns in the luminal debris, necrotic tissue and adjacent to submucosal blood vessels. Conclusion: There is accelerated deposition of iron and calcium associated with button batteries.