BACKGROUND The study aimed to investigate the utility of dynamic contrast enhanced MRI (DCE-MRI) in the differentiation of malignant, borderline, and benign complex ovarian tumors. METHODS DCE-MRI data of 102 consecutive complex ovarian tumors (benign 15, borderline 16, and malignant 71), confirmed by surgery and histopathology, were analyzed retrospectively. The patterns (I, II, and III) of ...

abstract: introduction & objective: awareness of invasion of the walls of the cervical vessels by tumor is of great clinical importance before surgery. this study was designed to assess the diagnostic worth of computed tomography (ct) in distinguishing jugular vein (jv) invasion by oral –maxillofascial and neck malignant tumors. material & methods: ct with contrast was performed on 46 patients ...

background and objective: approximately 45% of benign peripheral nerve sheath tumors (pnst) occur in head and neck regions. malignant peripheral nerve sheath tumors (mpnst) are less common and only 8-15% of these tumors occur in head and neck region. in this study, we aimed at evaluating the demographic characteristics, pathologic findings, locations, main clinical presentations and family hist...

abstract introduction: cancer stem cells are a small subpopulation of cells within a tumor which are responsible for maintaining the tumor mass. a number of factors such as oct-4 that govern the fate of adult stem cells also play a role in malignant cell transformation. oct-4 is a key regulator of self-renewal in embryonic stem cells; its expression is potentially correlated with tumorigenesis ...

Most common tumors of the spleen are hematologic and lymphoid malignancies. Non-lymphoid and non-hematologic tumors of the spleen are very rare, the most common of which are vascular tumors. This group of tumors in the spleen is composed of heterogeneous tumors such as hemangioma, angioendothelioma (AE), littoral cell angioma, and angiosarcoma. There are several histologic forms of AE such as e...

Aim: To identify the association of vascular endothelial growth factor (VEGF) immunoexpression in progression salivary gland tumor. Study design: Comparative cross-sectional study Place and duration study: Department Pathology, Peshawar Medical College. Duration was six months from date approval. Methodology: Forty five specimen tumor were studied which 30 benign 15 malignant. The endpoint asse...

Results: Osteosarcoma (44%) was the most common diagnosis. Pain (86%), palpable mass (51%), and peroneal nerve symptoms (12%) were the most common presenting symptoms. One hundred and three (92%) of 112 underwent curative surgical treatment. The two most common procedures were amputation in fifty (45%) of 112 patients and Malawer type-II resection in twenty-four (21%) of 112 patients. Deliberat...

1) Out of 160 primary meningeal tumors surgically treated, 10 cases had histologically malignant tumors. Of them two cases of sarcoma and one case of meningioma with marked invasiveness were filed in malignant (sarcoma) group, and six cases of angioblastic meningioma of hemangiopericytoma type and one case of meningioma with partial invasiveness in semi malignant group. 2) Average duration of s...

Salivary gland neoplasms are a heterogeneous and important group of tumors of the Oral and Maxillofacial Pathology. They comprise from 2 to 3% of all the salivary gland lesions and tumors1,2 because their heterogeneity, since several years, different classifications based in clinical or microscopic criteria had been appeared.3-7 The most recent and most widely used is that proposed by Seifert e...