background: ovarian cancer is the most common cause of cancer death worldwide. incidence of ovarian cancer is more common in postmenopausal women. premenopausal onset is rare and the present study described two cases of ovarian clear cell tumors in young women. case presentation: the patients presented with pelvic mass which was confirmed by sonography and laparotomy and final diagnosis was mad...

conclusions a complete immunohistochemical study should be considered in cases of malignant salivary gland tumors. to reduce the recurrence rate of these tumors, the optimum therapies are radiotherapy and chemotherapy. introduction salivary gland tumors are rare head and neck lesions. the majority are benign, with only 20% of cases malignant. an epithelial-myoepithelial carcinoma is a rare low-...

clear cell variant of ependymoma is almost exclusively located in the supratentorial region. only few cases of this tumor that located in the spinal cord have been reported. here we report one case of intramedullary clear cell ependymoma of the lumbar spinal cord. in microscopic examination, the tumor cells were round to oval with moderate amounts of clear cytoplasm and centrally located large ...

metastatic lesions represent 1-8% of all malignant tumors of the mouth and jaws, which are regarded as rare sites of metastases from different primary tumors. metastases in mouth soft tissue are also rare, and within these it is on the gums where they more frequently occur. primary tumors which metastasize to the mouth are most commonly: lung, breast, and kidney. clear cell carcinoma is the mos...