Patterns and incidence of neural invasion in patients with cancers of the paranasal sinuses
Archives of Otolaryngology--head & Neck Surgery
Ziv GilDennis H Kraus
To characterize the incidence and pattern of neural invasion (NI) in patients with cancers of the paranasal sinuses and anterior skull base. Retrospective study. A tertiary referral cancer center. The study included 208 patients with cancer of the paranasal sinuses. Patients with brain invasion or neurogenic tumors were excluded. Analysis of clinical and pathologic data on patients with cancer of the paranasal sinuses. Forty-one specimens (20%) had evidence of NI. Sinonasal undifferentiated, adenoid cystic, and squamous cell carcinoma had a high propensity for NI, whereas melanoma and sarcoma rarely invaded nerves. Intraneural invasion was found in 32% of these cases, and 34% invaded more than 1 cm distal to the tumor. Neural invasion was associated with a high rate of positive margins, maxillary origin, and previous surgical treatment (P < .04) but not with stage, orbital invasion, or dural invasion. Patients with NI were more likely to undergo adjuvant radiotherapy (P = .003), which significantly improved survival in patients with minor salivary gland carcinomas (P = .04). Multivariate analysis showed that pathologic evidence of NI was not an independent predictor of outcome. Paranasal carcinomas have high propensity for NI, ...Continue Reading
Apr 9, 2017·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Francisco J Barrera-FloresRodrigo E Elizondo-Omaña
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