Cervical sympathetic chain schwannoma.

Introduction: Cervical schwannoma is a benign peripheral nerve tumor specifically developing from Schwann cells. Cervical sympathetic chain schwannoma is rare. Following a case report, the authors describe its specific radiological and histological characteristics.

[Upper aerodigestive tract carcinoma: therapeutic management].

Cancers of the upper aerodigestive tract cover the solid tumors of the oral cavity, pharynx and larynx. The principal risk factors identified are smoking and alcohol. Moreover, the combination of alcohol and smoking increases the relative risk by more than simple multiplication.