Sinonasal cancer encroaching the orbit: Ablation or preservation?
Cancer
Exenteration
Magnetic resonance imaging
Non-surgical treatment
Orbit
Preservation
Sinonasal
Survival
Journal
Oral oncology
ISSN: 1879-0593
Titre abrégé: Oral Oncol
Pays: England
ID NLM: 9709118
Informations de publication
Date de publication:
03 2021
03 2021
Historique:
received:
15
09
2020
revised:
10
11
2020
accepted:
02
01
2021
pubmed:
1
2
2021
medline:
18
11
2021
entrez:
31
1
2021
Statut:
ppublish
Résumé
Encroachment on the orbital cavity represents a challenge in the management of sinonasal cancer. Criteria guiding orbital preservation lack univocal consensus. Stage of orbital involvement is best assessed through magnetic resonance imaging (MRI). Patients affected by orbit-encroaching sinonasal cancer with available preoperative MRI, receiving surgery-based treatment at the University of Brescia between May 2005 and October 2018 were included. All cases were reviewed by expert radiologists and pathologists. Diagnostic performance of MRI was calculated using pathological information as reference. Survival analysis was performed. The study included 123 patients. The orbit was abutted in 53 (43.1%) patients, whereas orbital invasion reached the periorbit in 18 (14.6%), extraconal fat and/or medial lacrimal sac in 29 (23.6%), extrinsic ocular muscles in 7 (5.7%), intraconal compartment in 4 (3.3%), and orbital apex in 12 (9.8%). Seventy-six (61.8%) patients received orbit-sparing surgery, 47 (38.2%) underwent orbital ablation (OA). Accuracy of MRI in detecting involvement by cancer was ≥80.0% for the orbital wall, extraconal fat, and muscles, and <80.0% for the periorbit and intraconal compartment. Previous surgery, neoadjuvant chemotherapy, and perineural invasion decreased MRI accuracy. Age, histology, tumor grade, pT category, N status, perineural invasion, orbital invasion stage, and need for OA were found to affect prognosis. Five-year orbital dysfunction-free survival was 92.8%. Conservative management of sinonasal cancers encroaching the orbit is feasible. MRI is essential to preoperatively stage orbital invasion, yet with some limitation. Given the dismal prognosis despite aggressive surgery, neoadjuvant non-surgical therapies should be considered in patients requiring OA.
Sections du résumé
BACKGROUND
Encroachment on the orbital cavity represents a challenge in the management of sinonasal cancer. Criteria guiding orbital preservation lack univocal consensus. Stage of orbital involvement is best assessed through magnetic resonance imaging (MRI).
METHODS
Patients affected by orbit-encroaching sinonasal cancer with available preoperative MRI, receiving surgery-based treatment at the University of Brescia between May 2005 and October 2018 were included. All cases were reviewed by expert radiologists and pathologists. Diagnostic performance of MRI was calculated using pathological information as reference. Survival analysis was performed.
RESULTS
The study included 123 patients. The orbit was abutted in 53 (43.1%) patients, whereas orbital invasion reached the periorbit in 18 (14.6%), extraconal fat and/or medial lacrimal sac in 29 (23.6%), extrinsic ocular muscles in 7 (5.7%), intraconal compartment in 4 (3.3%), and orbital apex in 12 (9.8%). Seventy-six (61.8%) patients received orbit-sparing surgery, 47 (38.2%) underwent orbital ablation (OA). Accuracy of MRI in detecting involvement by cancer was ≥80.0% for the orbital wall, extraconal fat, and muscles, and <80.0% for the periorbit and intraconal compartment. Previous surgery, neoadjuvant chemotherapy, and perineural invasion decreased MRI accuracy. Age, histology, tumor grade, pT category, N status, perineural invasion, orbital invasion stage, and need for OA were found to affect prognosis. Five-year orbital dysfunction-free survival was 92.8%.
CONCLUSION
Conservative management of sinonasal cancers encroaching the orbit is feasible. MRI is essential to preoperatively stage orbital invasion, yet with some limitation. Given the dismal prognosis despite aggressive surgery, neoadjuvant non-surgical therapies should be considered in patients requiring OA.
Identifiants
pubmed: 33517131
pii: S1368-8375(21)00008-7
doi: 10.1016/j.oraloncology.2021.105185
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
105185Informations de copyright
Copyright © 2021 Elsevier Ltd. All rights reserved.