introduction: as one of the most common cancers among head and neck malignancies, cancer of the oral cavity probably has some variations in countries with a high prevalence of esophageal cancer.  materials and methods: patients with oral cavity cancer who were treated at two tertiary referral centers from january 1999 to january 2009 were included in this study. in addition to demographic data,...

Introduction: Xerostomia is the most common complication due to radiation–induced damage to salivary glands in head and neck cancer radiotherapy and it reduces quality of life. Parotid glands are main glands which they are account for secretion of stimulated saliva. Studies have demonstrated that mean tolerance parotid’s radiation dose under 26-30 Gy result in an increase in t...

objectives: presence/absence of cervical lymph node metastasis plays a critical role in prognosis and survival of patients with oral squamous cell carcinoma (scc). this study was designed to assess the diagnostic accuracy of computed tomography (ct) scan for detection of cervical lymph node metastasis in oral scc in comparison with histopathological analysis after neck dissection methods: in th...

BACKGROUND Head and neck cancer constitutes a substantial portion of the burden of disease in South Asia, and there is an undersupply of surgical capacity in this region. The purpose of this study was to estimate the economic welfare losses due to head and neck cancer in India, Pakistan, and Bangladesh in 2010. METHODS We used publicly available estimates of head and neck cancer morbidity and...

Ablative surgery for malignancies of the upper aerodigestive tract is the most common reason why the reconstructive surgeon is called upon to reconstruct adult head and neck defects. An understanding of the pathophysiology and treatment of head and neck malignancy is vital to the reconstructive surgeon so that restoration of both form and function can be achieved. It is important to understand ...

September 01, 2008 About 500,000 head and neck carcinomas are diagnosed worldwide annually. This accounts for approximately 8% of all newly diagnosed cases of cancer, ranking head and neck carcinoma the sixth most common.[1] In the United States, 47,560 new head and neck carcinomas are expected to be diagnosed in 2008,[2] and this disease accounts for 5% of all newly diagnosed cases of cancer. ...

September 01, 2008 About 500,000 head and neck carcinomas are diagnosed worldwide annually. This accounts for approximately 8% of all newly diagnosed cases of cancer, ranking head and neck carcinoma the sixth most common.[1] In the United States, 47,560 new head and neck carcinomas are expected to be diagnosed in 2008,[2] and this disease accounts for 5% of all newly diagnosed cases of cancer. ...

Introduction: Globally, intensity-modulated radiation therapy (IMRT) is considered as highly precise and accurate method of radiotherapy planning. This technique amplifies spatial dose distribution conformity by modulating the intensity of radiation beams in each sub-volume. Additionally, it can reduces the dose to surrounding critical organs and deliver the planned dose to targets with the nom...