background and objective: approximately 45% of benign peripheral nerve sheath tumors (pnst) occur in head and neck regions. malignant peripheral nerve sheath tumors (mpnst) are less common and only 8-15% of these tumors occur in head and neck region. in this study, we aimed at evaluating the demographic characteristics, pathologic findings, locations, main clinical presentations and family hist...

introduction: head and neck sarcomas involve a group of rare malignant diseases with a high histological variability involving various anatomical sites that can lead to under-reporting of the true incidence of these neoplasms. this study aimed to epidemiologically investigate the occurrence of sarcomas of the head and neck within the past 20 years in yazd, iran (1994– 2014). materials and metho...

non hodgkin lymphoma (nhl) constitutes 5% of all head & neck cancer. the incidence of it has been increased over the last four decades. one of main characteristic of nhl is extranodal presentation that has different pattern in various part of world. a retrospective was designed in a tertiary referral center. it has been done between january 1996 and march 2006. all clinical and pathological cha...

introduction xerostomia is one of side-effects of radiotherapy for head and neck cancers. no definitive method has been proposed for the treatment of this condition. however, pilocarpine is considered effective for the management of chronic xerostomia. the purpose of the present study was to assess the preventive effect of pilocarpine. materials and methods this study was performed on 34 patien...

Cancer is a global public health problem; it causes great loss of life and responsible for enormous economic, social emotional burdens [1,2]. In head neck, cancer includes variety neoplasms.

Squamous cell carcinomas of the head and neck constitute an anatomically heterogeneous group of neoplasms that share in common a causal association with tobacco and alcohol exposure. The clinical course of these neoplasms is difficult to predict based on established prognostic clinicopathological criteria. Given the genetic complexity of head and neck cancers, it is not surprising that correlat...

Introduction: Submandibular region is surgically significant in the head and neck field and a mass in this region may have multiple differential diagnoses.   Case Report: An elderly man came with a single 4×2.5 cm swelling in the neck on the right side, just below the lower jaw, since one month. Ultrasound showed an irregular heterogeneous hypoechoic les...