Summary: In this study, the investigators will prospectively recruit 100,000 individuals, including gastric cancer patients who have not undergone any anti-tumor treatment and non-gastric cancer participants. The investigators will construct a diagnostic model for malignant tumors based on the combination of tongue imaging, tongue coating, saliva, gastric juice, and fecal multi-omics data (including metage...

Summary: This study will fill a scientific gap in the current knowledge providing data for evaluation of the palatal augmentation prosthesis (PAP) as a therapeutic modality post-surgery. This is a robust scientific randomized prospective clinical trial. Positive outcomes from this study have the potential to dramatically alter the most common issues of oral cancer therapy, namely speech and swallowing func...

Summary: The current standard treatment option for Human Papillomavirus (HPV) or p16-positive oropharyngeal cancer is full-dose radiation combined with chemotherapy. Results with chemotherapy combined with full-dose radiation therapy leads to high rates of cure; this has called into question whether therapy can be decreased in intensity since both chemotherapy and radiation have long-term side effects. One...

Summary: Oral cavity cancer (OCC) is one of the most common cancers worldwide, with tongue cancer being one of the most common subtypes. Patients with oral cancers can experience painful swallowing, swallowing difficulty (dysphagia), and associated weight loss long after surgery. Not only is dysphagia an independent predictor of quality of life (QoL) in cancer survivorship, it can also have a devastating i...

Summary: This pilot clinical trial studies transoral robotic surgery (TORS) in treating patients with benign or malignant tumors of the head and neck. TORS is a less invasive type of surgery for head and neck cancer and may have fewer side effects and improve recovery

Summary: The evidence of swallowing changes in tongue cancer patients is still limited. This study aimed to investigated the swallowing changes in these patients by using the videofluoroscopy (VFSS) and high resolution impedance manometry (HRIM).

Summary: The goal of Arabic patient-reported outcome measures during radiotherapy for head and neck cancer is to test the patient-reported outcome measure (PROM) tools. PROM tools are not validated cross-culturally in Arabic-speaking patient populations, which limits their use in our clinical setting. Validation of these PROM tools will allow clinicians to identify the concerns related to our patient popul...

Summary: Squamous cell carcinoma (SCC) is a cancer that originates from the cells lining the body and can spread into the lymph glands and beyond. Some patients first present with an SCC which has moved to the lymph glands of the neck. Clinical examination and imaging investigations are performed to try and identify the site where the cancer has originated. However, if no original site can be identified, t...

Summary: Regarding oral cavity cancer, the high incidence of neck metastasis along with its impact on survival and prognosis are in favor of elective neck dissection. Moreover, occult metastases could develop at lower levels in the neck (levels IV-V) Regarding the tongue, the rate of skip (occult) metastasis involving unremoved level IV cervical lymph nodes in squamous cell carcinoma of the tongue ranges f...

Summary: In current diagnostic work-up of patients with a cancer of unknown primary (CUP), approximately 50% of the primary tumor lesions remains undetected. Identification of the primary tumor site results in minimizing the potential morbidity from treatment by reducing morbidity by omitting the need for a mucosectomy of the bilateral base of tongue and tonsils, reducing the radiation field and better onc...