CT and MRI Findings of Esthesioneuroblastoma / 实用放射学杂志

ABSTRACT

Objective To study CT and MRI findings of esthesioneuroblastoma.Methods Nine cases of esthesioneuroblastoma proved pathologically were presented.There were four male and five female,with mean age of 34.6 years.CT scan in four cases and MRI in seven cases were done and 2 cases had enhanced MRI.Results The location of lesions were in nasal cavity in 2 cases and in nasoethmoid region in 7 cases.Among nine cases,six cases were seen in the right side,and three cases in the left side.On CT and MRI,the lesion demonstrated a destructive solid mass,CT value ranged 29～36 HU.The lesions appeared as hamogeneous signal intensity which was higher than tongue muscle on T_1WI,and higher than grey matter on MRI T_2WI . Turbinal and ethmoid bony destruction were showed on all nine cases. The lesions invaded into opposite nose and ethmoid sinus in four cases,intruded into intracrainial cavity in eight cases, frontal sinus in six cases, orbit in eight cases in which two cases had eye protrusion, maxillary sinas in five cases and sphenoid sinus in five cases.Conclusion A esthesioneuroblastoma can be considered if a destructive solid mass occurs in nasal cavity and ethmoid sinus,with a middle signal intensity on T_2WI.