A case of a rare epithelioid hemangioendothelioma (EHE) with multifocal location in a 32 year-old male is reported. The patient presented to our hospital with a knee pain. After thorough investigations and establishing the diagnosis, surgical treatment was done. This tumor involves bones of the axial skeleton and long tubular bones. EHE is usually multifocal in more than 50% of the cases. The m...

INTRODUCTION Epithelioid hemangioendothelioma (EHE) is a rare endothelial tumor with an intermediate grade of malignancy. Few cases of primary vascular hemangioendothelioma have been described in the literature. Surgery is the treatment of choice, but radiation therapy and chemotherapy should also be considered in particular cases. CASE PRESENTATION We present the case of a 44-year-old Caucas...

BACKGROUND AND OBJECTIVES Shigella, causative of bacillary dysentery, has two colony forms. The loss of large virulence plasmid from virulent Shigella sonnei form I, during cell storage and subculturing, lead to avirulent form II. Environmental factors, e.g. culture media composition, could affect the conversion of the bacterial forms. MATERIALS AND METHODS In this study, some components, i.e...

were within normal limits. Abdominal computed tomography (CT) demonstrated multiple round or oval areas of low density with intratumoral calcifi cation, mostly along the margins of the liver ( fi g. 1 a). Contrast-enhanced CT showed dense enhancement all around the tumors. CT during hepatic arteriography (CTHA) demonstrated target-like lesions, that is, a central low-density area with a A 50-ye...

Carrion's disease is typically biphasic with acute febrile illness characterized by bacteremia and severe hemolytic anemia (Oroya fever), followed by benign, chronic cutaneous lesions (verruga peruana). The causative agent, Bartonella bacilliformis, is endemic in specific regions of Peru and Ecuador. We describe atypical infection in an expatriate patient who presented with acute splenomegaly a...

Angiomatosis of the breast is an extremely rare, benign vascular lesion. This is a diagnostic challenge, given the limited number of cases reported in the literature. Additionally, due to similar features of the more common malignant vascular tumor, angiosarcoma familiarity with angiomatosis in the differential diagnosis is important. We present a case of angiomatosis of the breast in a 28-year...

Antibody-mediated immunity to Shigella, the causative agent of bacillary dysentery, requires several episodes of infection to get primed and is short-lasting, suggesting that the B cell response is functionally impaired. We show that upon ex vivo infection of human colonic tissue, invasive S. flexneri interacts with and occasionally invades B lymphocytes. The induction of a type three secretion...

Background: Epithelioid vascular tumors are uncommon vascular neoplasm that predominately occur on the head and neck. Histological descriptions have been used to classify these tumors as either benign epitheloid hemangiomas or malignant epitheloid hemangioendotheliomas and epithelioidangiosarcoma. Although extremely rare, 17 cases of hemangioendothelioma of the penis have been reported in the l...

In this study, the use of Mtp-40 and alpha antigen polymerase chain reaction (PCR) amplification fragments for the precise tuberculosis (TB) diagnosis was evaluated. One hundred and ninety two different samples were obtained from 113 patients with suspected TB. Mtp-40 and alpha antigen protein genes were amplified by the PCR technique and compared to both the "gold standard" (culture) test, as ...