in the head and neck region, tracheal and larynx paragangliomas are much less common and subglottic paragangliomas have been rarely reported. less than 60 cases with larynx paraganglioma and a few cases with ‎trachea paraganglioma have been reported ‎until know in the literature. ‎this report describes a 28 year old man suffering from progressive dyspnea due to tracheal and subglottal tumor. ‎h...

  Schwannoma(neurilemmoma) is a benign tumor originates from Schwann cells. Ancient (degenerated) schwannoma is a long-standing schwannoma with degenerative changes. Head and neck region is one of the most common sites for nerve sheath tumors but intraosseous schwannoma is rare. The mandible is the most common site of occurrence for this lesion. We report a rare case of intraosseous ancient sc...

although esophageal liposarcoma is an extremely rare tumor, liposarcoma is the most common soft tissue sarcoma in adults. liposarcoma is currently classified into the types of well-differentiated, myxoid, round cell, pleomorphic and dedifferentiated liposarcoma. up to now only a few cases of esophagus liposarcoma have been described in the world literature. we describe a myxoid type liposarcoma...

Introduction: Head and neck squamous cell carcinoma (HNSCC) is one of the most common cancers in the world. Extra- and intra-cellular high-mobility motor box 1 (HMGB1) proteins are invovled in the pathogenesis and prognosis of cancer. Regarding this, the present study was conducted with the aim of investigating the expression of HMGB1 protein and mRNA levels in the blood, tumor tissue, and mar...

Cancers of the head and neck are a malignancy causing a considerable health burden. In head and neck cancer patients, tumor hypoxia has been shown to be an important predictor of response to therapy and outcome. Several imaging modalities can be used to determine the amount and localization of tumor hypoxia. Especially PET has been used in a number of studies analyzing this phenomenon. However,...

conclusions the application of natural honey is effective in managing and preventing radiation-induced stomatitis in patients with head and neck cancers. results the results showed that severe stomatitis in groups of honey, chamomile and control was 0, 5.7%, and 17.6%, respectively. on the 14th day, it was 0, 0, and 17.6%, respectively. there were significant differences between the three group...

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...