title: Umbilical sinus from polyethylene catheter.
mesh_terms: D002404:Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D002675:Child, Preschool; D005547:Foreign Bodies; D006801:Humans; D008297:Male; D011095:Polyethylenes; D014472:Umbilicus
chemical_list: D011095:Polyethylenes