Epitheloid osteosarcoma (carcinosarcoma) of the bone is a rare malignant tumor and only a few cases have been reported in the literature. In this study, we report two cases of osseous carcinosarcoma (epitheloid osteosarcoma) with immunohistochemical studies.  The morphological and immunohistochemical data in these two cases support the theory of divergent differentiation of primitive, uncommitt...

The learning objectives of this review article are to identify benign vs. malignant criteria in bone tumor diagnosis and also to differentiate the types of bone tumors and their characterization. Based on the Lodwick classification an overview of the three main types of bone destruction patterns visible on radiographs will be given with many examples. Typical examples of benign and malignant bo...

Positron emission tomography (PET) using [ 18 F]fluorodeoxyglucose (FDG) is a useful modality to examine many kinds of tumors, including primary bone tumors. Malignant bone tumors show higher FDG accumulation than benign tumors and earlier reports mention that FDG-PET can differentiate malignancy from benignancy; however, some benign bone tumors present with high FDG accumulation, which increas...

salivary  gland  tumors  accounts  for  less  than  1%  of  all  tumors.  minor  salivary  gland  tumors (msgts) are uncommon and make up about 10% of all salivary gland neoplasms. the clinical and histopathological distribution of these tumors vary geographically. a case of a 38 yr old man with a minor salivary gland mass at chin region isreported here. the tumor invaded into the anterior surf...

BACKGROUND Benign and malignant bone tumors can present similar imaging features. This study aims to evaluate the significance of apparent diffusion coefficients (ADC) in differentiating between benign and malignant bone tumors. METHODS A total of 187 patients with 198 bone masses underwent diffusion-weighted (DW) magnetic resonance (MR) imaging. The ADC values in the solid components of the ...

Metastasis to the lymph nodes is relatively rare in malignant bone and soft-tissue tumors, and its risk factors remains unknown, except for tumors of the lymphogenous histotype, including rhabdomyosarcoma, epithelioid sarcoma, and clear cell sarcoma. The purpose of this study was to identify the risk factors for lymph node metastasis of malignant bone and soft-tissue tumors. We retrospectively ...

epitheloid osteosarcoma (carcinosarcoma) of the bone is a rare malignant tumor and only a few cases have been reported in the literature. in this study, we report two cases of osseous carcinosarcoma (epitheloid osteosarcoma) with immunohistochemical studies.  the morphological and immunohistochemical data in these two cases support the theory of divergent differentiation of primitive, uncommitt...

Background: The reel impact of malignant bone tumors in adults seems unclear in Black Africa. Aim: The aim of this study is to determine the epidemiological and the semiological profile of malignant bone tumors in rheumatology inpatients at Hospital University Center Sylvanus Olympio in Lome. Methods: It was a retrospective study of recorded cases conducted over a period of 19 years in the rheu...

Medication-related osteonecrosis of the jaw (MRONJ) is known to be one adverse events antiresorptive drugs such as bisphosphonates and denosumab, but mechanisms treatment methods MRONJ have not been established. It necessary perform therapy without interfering with underlying diseases osteoporosis bone metastasis malignant tumors.

anatomy: middle cranial fossa mainly floored by sphenoidal bone and located post. to innominate bone or lesser wing and ant. to temporal bone. main foramens are located in deep part, bilateral to sellae are orbital fissures, optic canals, foramen rotundom, ovale and spinosum, foramen lacerum also meckle cave or trigeminal impression and carotid canal. this fossa is like a butterfly in shape. le...