Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
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Σάββατο 15 Απριλίου 2017

The keys to conservative treatment of early-stage squamous cell carcinoma of the tonsillar region

Publication date: Available online 14 April 2017
Source:European Annals of Otorhinolaryngology, Head and Neck Diseases
Author(s): O. Laccourreye, P. Castelnau-Marchand, F. Rubin, C. Badoual, P. Halimi, P. Giraud
To analyze the medical literature devoted to work-up, epidemiology, local control, survival, complications and sequelae after conservative treatment for early-stage squamous cell carcinoma of the tonsillar region. An analysis of the PubMed (1975–2016) database was performed using the following keywords and associations: "tonsil/tonsillar region/oropharynx" AND "squamous cell carcinoma" AND "early-stage (I–II; T1–2N0M0)" AND "radiation therapy/radiotherapy" OR "conservative surgery/oropharyngectomy/transoral surgery/radical tonsillectomy". The search retrieved 10 retrospective series documenting local control and/or survival in series with more than 50 cases and a minimum 2 years' follow-up after conservative treatment; no prospective studies, meta-analyses and/or Cochrane analyses were found. Magnetic resonance imaging is the key radiological exam for local extension assessment. Human papilloma virus infection (HPV) is a risk factor that must be screened for systematically, since it induces tumoral radio-sensitivity and increases the risk of specific synchronous and metachronous second primaries. Whatever conservative treatment used, local control and survival rates higher than 85% were achieved. Implementing intensity-modulated radiation therapy reduced the incidence and severity of radiation-related complications and sequelae. Transoral surgery yielded very low morbidity/mortality rates, enabled association to ipsilateral neck dissection, and allowed radiation therapy to be reserved for the management of metachronous second primaries. Transoral surgery appeared to be the first-line option in the majority of cases. Lifetime follow-up adapted to HPV status is mandatory. The development of HPV vaccination does not mean that campaigns against smoking and alcohol abuse are of diminished importance.



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