简介:DearSir,IamDr.Yin-HungChangfromtheDepartmentofOtolaryngology,TaipeiTzuChiHospital,theBuddhistTzuChiMedicalFoundation.Iwouldliketopresentacaseofinvertedpapillomawithcarcinomachangeoflacrimaldrainageapparatusandnasalcavitythathadbeensuccessfullytreatedbyendoscopicsurgery.Lacrimaldrainageapparatustumorsarerarebutimportant