Two cases of undifferentiated carcinomas of the major salivary glands were studied using immunohistochemical techniques. Results showed that this entity was a high grade malignant neoplasm arising from the excretory duct. Despite the undifferentiated appearance multiple immunophenotypes were evident in both cases.

The Fifth edition of the World Health Organization classification digestive system and American Joint Committee on Cancer staging manual contain substantial refinements information for esophageal tumors. epithelial tumors esophagus are classified as benign, dysplasia, malignant groups. Dysplasia is divided into Barrett dysplasia squamous graded either low-grade or high-grade. Malignant often ad...

Gallbladder carcinoma is an aggressively malignant disease carrying extremely poor prognosis. Undifferentiated spindle cell carcinoma, the rarest of all gallbladder cancers also has same Patients usually have no specific or vague presenting symptoms, thus, in such scenario presentation with late-stage often common. We herein reported a case 63-year-old male who presented short history abdominal...

Malignant tumors of the sinuses and nasal cavity are rare diseases. Squamous cell carcinoma is most common histological type (55–70 % cavity). The frequency neuroendocrine reaches 5 %. Currently, there no generally accepted standard for treatment sinonasal localization. If surgical associated with a significant deterioration quality life or poor outcomes, chemoradiotherapy can be recommended. T...

Paragangliomas are very rarely seen in the nose, paranasal sinuses and nasopharynx. The development of paraganglioma concurrently with nasopharyngeal carcinoma in the same region has not been reported to date. In this study we reported a 59-years-old a female case of nasopharyngeal carcinoma who underwent radiotherapy six years ago and got the diagnosis of sinonasal paraganglioma in the same re...