Background: Sinonasal malignancy surveillance paradigms are often based on Head and Neck National Comprehensive Cancer Network guidelines, which do not recommend standard surveillance imaging beyond 6 months without concerning symptomatology or physical examination findings.
Methods: This was a retrospective analysis of all patients who underwent resection of sinonasal malignancy at a tertiary care center over a 20-year period from 2000 to 2020, with an ensuing surveillance period demonstrating recurrence.
Results: Fifty-two patients with sinonasal malignancy recurrence were included, with an average time to recurrence of 30.9 months and a follow-up period of over 60 months. Recurrence was diagnosed by routine imaging or endoscopy in asymptomatic patients in a majority (60%) of cases, while the remaining minority of diagnoses followed new symptomatology. Asymptomatic recurrence was associated with perineural spread of tumor at initial resection (p = 0.025), but not with age (p = 0.85) or stage at diagnosis (p = 0.68). Expectedly, positron emission tomography/computed tomography (CT) more often detected regional or distant recurrence, while structural imaging (CT/magnetic resonance imaging) demonstrated more frequent detection of recurrence in those with perineural spread of tumor (p = 0.01).
Conclusions: Our findings support high rates of asymptomatic recurrence in sinonasal malignancy, with the majority of recurrences diagnosed by routine endoscopy or imaging. Tailored and extended surveillance guidelines are necessary relative to those utilized for other head and neck mucosal cancers, and are especially appropriate when features such as perineural spread are present.
Keywords: endoscopic minimally invasive; endoscopic skull base surgery; post‐operative; skull base; surgery of the skull base.
© 2024 The Author(s). International Forum of Allergy & Rhinology published by Wiley Periodicals LLC on behalf of American Academy of Otolaryngic Allergy and American Rhinologic Society.