Sinonasal T/NK lymphomas are distinct clinicopathological category of extranodal head and neck lymphomas.In Europe and America,the incidence of sinonasal malignant lymphomas was 1.5% in all lymphomas,2.2% in extranadal lymphomas;And in Asia,the incidence was hegher than that in Eurepe and America.Some references confirmed that those lymphomas have immunophenotype of T-lymphocyte/natural killer cell,for this reason,its named as T/N lymphomas.In this paper,the references of immunophenotype,clinicopathogenical feature,diagnosis and management of sinonasal T/N lymphomas were reviewed

0.05). Upward-sloping and spoon audiogram were 60.83% (73/120 ears). Inducing rate of acoustic reflex(AR) was 21.95%.Speech discrimination scores(SDS) were 9.94?11.89%. Auditory brainstem response(ABR) was absent or severely abnormal.Distortion product otoacoustic emission(DPOAE) was normal or roughly normal.Conclusion Patients with auditory neuropathy were predominantely juveniles. Incidence of female cases and cases from rural areas were higher. Pure tone audiometry showed mainly bilateral mild and moderate hearing loss at low-frequencies.