INTRODUCTION Metastatic lesions of the oral cavity are extremely rare, accounting for approximately 1% of all malignant oral tumors. The most common primary sources of metastatic tumors in the oral region are, from the most to the least common, the breast, lung, kidney, bone, and colon. Renal cell carcinoma accounts for nearly 3% of all adult malignancies. It usually metastasizes to the lungs, ...

Metastatic tumors of the oral cavity are rare in occurrence. Renal cell carcinoma (RCC) metastasizes to organs head and neck 12–16% cases. RCC metastases tongue uncommon. A total 63 cases kidney cancer metastasizing have been reported literature. We report a clinical case metastasis skin lower eyelid (as initial manifestation disease) (11 months after diagnosis) one patient with metastatic canc...

statement of the problem: the head and neck region is an uncommon site for metastatic involvement, but it can be the first and only symptom of primary cancer. the incidence of these tumors and their primary origins are limited in iranian patients. purpose: therefore, this retrospective study aimed to investigate the frequency and the common related clinical manifestations, as well as, the most ...

background: the presence of metastatic lymph nodes is the most important prognostic factor for gastric carcinoma; however, the optimal system for the accurate staging of lymph node metastasis for patients with gastric cancer remains controversial. this study was designed to compare five systems in relation to the n classification of gastric carcinoma. materials and methods: this multicentric hi...

Metastasis is the spread of disease from one organ or part of it to another non-adjacent organ or part. When the cancer cells at the originating site become clinically detectable, it is called a primary tumour. Metastasis of systemic primary tumours to oral cavity is uncommon. Such metastatic carcinomas involve the jaw bones and the oral soft tissues. Metastatic carcinomas in oral region can be...

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...

metastatic   tumors in the nose and paranasal sinuses are infrequent. the origin of this metastatic tumors are often renal cell carcinoma. we present one case of metastatic renal cell carcinoma   to the nose and paranasal sinuses ,4 years after initial nephrectomy and diagnosis of stage t1n0m0 clear cell carcinoma. the patient complained of nasal obstruction and recurrent epistaxis   who was tr...

Tongue squamous cell carcinoma is one of the most common cancers, which has the highest incidence in oral maxillofacial malignant tumors. MiR-21 may promote tumorigeness by down-regulating tumor suppressing genes and/or controlling the genes for cell differentiation and apoptosis, and it has been identified as the most expressive and unusual in a number of profiling experiments. The study shows...

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...

Oral cavity metastatic tumors derived from primary other corporal regions are rare, representing barely 1 % of all malignant tumors. Differential diagnosis these lesions is challenging due to the wide spectrum with similar clinical presentation and especially when presence a tumor goes undetected. We present case 55-year-old male painless in anterior maxillary region, vestibular gingiva palate,...