RÉSUMÉ
Nasal vestibule squamous cell carcinoma (NVSCC) is an exceedingly rare malignancy, often misclassified due to its anatomical location and lack of a standardized definition. This review aims to consolidate current evidence on NVSCC, focusing on epidemiology, risk factors, classification, clinical presentation, treatment modalities, and prognostic factors. The NV anatomy is delineated, emphasizing the need for a clear definition to avoid misclassification. Risk factors include smoking, sunlight exposure, and debated associations with chalk exposure or viral factors. Clinical presentation includes symptoms like nasal obstruction, pain, burning, and bleeding, often misdiagnosed as inflammatory conditions. NVSCC exhibits distinct local spread patterns along cartilaginous surfaces, with the facial and submandibular lymph nodes at higher metastatic risk. Current classifications lack consensus, hindering comparison of outcomes. Treatment varies, with surgery or radiotherapy for early-stage tumors and multimodality approaches for advanced cases. The choice between surgery and radiotherapy is debated, with potential advantages and drawbacks for each. Radiotherapy, especially with Interventional RadioTherapy (IRT, previously known as brachytherapy), is gaining prominence, showing promising outcomes in terms of local control and cosmetic results. Prophylactic neck treatment remains controversial, with indications based on tumor characteristics. Prognostic factors include T classification, tumor size, surgical margins, nodal involvement, and histological features. Long-term survival rates range widely, emphasizing the need for further studies to refine management strategies for this rare malignancy. In conclusion, NVSCC poses diagnostic and therapeutic challenges, warranting multidisciplinary approaches and continued research efforts to optimize patient outcomes.
RÉSUMÉ
BACKGROUND: Treatment of inverted papilloma of the maxillary sinus (IPMS) has a lower success rate compared to other IPs. As such, its correct management generally needs trans-nasal endoscopic medial maxillectomy (EMMs) for adequate resection. The aim of this manuscript is to describe outcomes and major prognostic factors of a cohort of patients with IPMS who were treated with EMM. METHODOLOGY: In this multicentric study, patients affected with IPMS and treated with EMMs were included. The site of origin of the IPMS were studied as well as the type of EMM performed. The histological features (IP vs dysplasia), type of mucosal resection (total vs. pedicle oriented), and post-operative complications were analyzed. RESULTS: 310 patients were included (212 primary and 98 recurrent cases). After a mean follow-up of 45.4 months, 15 patients experienced recurrence (4.8%) due to the application of EMMs tailored to the surgical insertion point. Dysplasia was significantly associated with a higher risk of recurrence. The rates of early and late complications were 11.6% and 11.9%, respectively. CONCLUSIONS: IPMS resection via tailored EMM is associated with excellent disease control, thus excluding the systematic use of extended EMMs, which can however be justified in case of dysplastic IPMS given its significant impact on recurrence.