ewing’s sarcoma is a round cell malignancy of bone and soft tissue that occurs predominately in adolescents and young adults.it is an uncommon malignancy, but is recognized as the second most prevalent primary bone tumor worldwide. extraosseous ewing’s sarcoma is extremely rare and can affect the skin, soft tissues, or viscera. prognostic and therapeutic features of ewing’s extraosseous tumors ...

In patients with malignancy, the common etiologies of granuloma formation are tumor related sarcoid reaction, sarcoidosis, tuberculosis and other granulomatous diseases. Often, the finding of granulomas in malignant patients may obscure the primary malignancy or may mislead towards treatment of infectious and other etiologies. Hence, their proper recognition and necessary follow up is needed to...

primary de novo intraosseous carcinoma is a rare neoplastic lesion which commonly occurs in the jaws. it is an epithelial odontogenic malignancy arising from odontogenic epithelial residues in the bone rather than from a preexisting epithelial lesion. in the present case report, the clinical, radiological and histological features of primary de novo intraosseous carcinoma are discussed and its ...

Background: Although cervical malignancy rate had grown up in recent years, primary cervical lymphoma is so rare. It must be high index of suspicious for primary cervical lymphoma diagnosis in patient with malignancy-like signs and symptoms for early detection. Primary cervical lymphoma has no standard treatment or follow-up protocol; so the management still is in doubt and based on previous ca...

secondary systemic vasculitis and nonbacterial endocarditis are rare events. we report a case presented with different manifestations of underlying malignancy such as systemic vasculitis, non bacterial endocarditis and dic (disseminated intravascular coagulopathy). efforts to find the source of malignancy was unsuccessful and due to patient's unwillingness for further evaluation, finally under ...