CONCLUSIONS: Endoscopic techniques seem to be safe approaches for the treatment of @entity4236 ( @entity4236 ). However, they are intended for selected @entity1 and require extensive experience in base of the skull surgery. OBJECTIVES: ENB is a rare @entity5 of the nasal cavity. The craniofacial approaches remain the gold standard of treatment in multiple centers. Endoscopic endonasal approaches were progressively developed. The main objective of this work was to study the overall survival and recurrence-free period for @entity1 with ENB who underwent endoscopic resection. METHODS: We performed a retrospective study from 1996 to 2014, reviewing the @entity1 treated by endonasal endoscopic surgery for ENB. RESULTS: Eight @entity1 benefited from endoscopic surgical resection. According to the Kadish classification, one @entity1 was stage A, three @entity1 were stage B, and four @entity1 were stage C. According to the Dulguerov classification, one @entity1 was stage T1, five @entity1 were stage T2, and two were stage T4. Reconstruction of the base of the skull was performed in three @entity1 . No @entity260 were noted. The mean follow-up period was 95 months. The 5-year overall survival was 87.5% and the 5-year recurrence-free survival was 75%. To date, there have been no local recurrences but two @entity1 had lymph node recurrences. Seven @entity1 are disease-free and one is deceased.

Long-term oncological outcome after endoscopic surgery for XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity4236 :: ('MESH:D018304', 'Disease') :: ['esthesioneuroblastomas', 'ENBs'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor'] @entity260 :: ('MESH:D011183', 'Disease') :: ['postoperative complications']
@entity4236 :: (MESH:D018304,Disease) :: ['olfactory esthesioneuroblastoma']
