A case series of button batteries as nasal foreign bodies among children.

Foreign bodies are a common occurrence in children that may be either accidental or self-induced as a matter of habit. Various materials have been reported as foreign bodies like metal, plastic toy parts, food matters, etc. Button batteries have been reported as foreign bodies in the nose and are especially relevant, due to their early chemical disintegration in contact with mucosal surface; hence, need emergency surgical intervention to avoid complications like septal necrosis and perforation. Here, we report four cases of button batteries in the nose at various stages of presentation with their sequelae along with a review of literature.