[Chronic dacryocystitis in a pediatric patient: transcanalicular endoscopic-assisted removal of iatrogenic foreign body from the lacrimal sac].

Congenital dacryostenoses are frequent problems in pediatric ophthalmology. For surgical intervention various transcanalicular techniques by lining the tear ducts with silicone tubes are available. A 5-year-old child was presented with severe chronic dacryocystitis of both eyes after several interventions for lacrimal duct surgery with silicone intubation had been carried out. Using endoscopy the fragments of intrasaccal silicone tubes could be localized and the foreign bodies could be removed by endoscopic transcanicular surgery. The complete removal of silicone tubes is obligatory otherwise severe complications can occur.