Put your money where your mouth is.

Suspicion for battery ingestion should be maintained for any round radiopaque foreign body. Presence of the classic "double ring" sign on plain film should prompt emergent operative removal, although it is not pathognomonic.

Diagnosis and treatment of a boy with IPEX syndrome presenting with diabetes in early infancy.

IPEX syndrome (Immune dysregulation, Polyendocrinopathy, X-linked) should be tested for in males under 6 months old presenting with diabetes, even without other IPEX features. Early diagnosis and bone marrow transplantation can improve outcomes.