Intraosseous Cavernous Hemangioma in the Mandible: A Case Report.

Intraosseous vascular lesions are rare conditions. They are most commonly seen in the vertebral column and skull; nevertheless, the mandible is a quite rare location. In this report, we present a case of intraosseous cavernous hemangioma in the mandible and discuss the clinical and radiological features.

H-ras oncogene expression and angiogenesis in experimental liver cirrhosis.

Background. Proto-oncogenes, particularly ras, may not only affect cell proliferation but also contribute to angiogenesis by influencing both proangiogenic and antiangiogenic mediators. The aim of this study was to investigate whether any relationship exists between ras expression and angiogenesis during diethylnitrosamine- (DEN-) induced experimental liver fibrosis.

Inflammatory myofibroblastic tumor of the liver: a case report.

Inflammatory myofibroblastic tumor of the liver is an uncommon lesion of uncertain pathogenesis that has a unique histological appearance. Symptomatology and clinical findings in most cases suggest malignancy, and despite the advances in imaging techniques, the preoperative diagnosis of this tumor is difficult. We describe herein a case of inflammatory myofibroblastic tumor of the liver with a review of the literature.

Thrombospondin-1 expression correlates with angiogenesis in experimental cirrhosis.

Aim: To investigate the significance of Thrombospondin-1 (TSP-1) expression and its relationship with angiogenesis during experimental fibrosis.

Methods: Cirrhosis was induced in male Wistar rats by intraperitoneal administration of diethyl nitrosamine (DEN). The serial sections from liver tissues were stained with anti-CD34 and anti-TSP-1 antibodies before being quantitated by light microscopy.

Hypoxia-inducible factor-1alpha expression in experimental cirrhosis: correlation with vascular endothelial growth factor expression and angiogenesis.

Angiogenesis progresses together with fibrogenesis during chronic liver injury. Hypoxia-inducible factor-1alpha (HIF-1alpha), a master regulator of homeostasis, plays a pivotal role in hypoxia-induced angiogenesis through its regulation of vascular endothelial growth factor (VEGF). The association between hypoxia, angiogenesis and VEGF expression has been demonstrated in experimental cirrhosis.

An unusual cause of cholecystitis: heterotopic pancreatic tissue in the gallbladder.

Gallbladder localization of heterotopic pancreas (HP) is uncommon and very rarely gives rise to symptoms. Herein we report a case of HP found in the gallbladder neck presented with signs and symptoms of cholecystitis. The patient was a 40-year old male, suffering from epigastric pain, abdominal fullness and fever.

Extramedullary hematopoiesis mimicking acute appendicitis: a rare complication of idiopathic myelofibrosis.

Extramedullary hematopoiesis (EMH) is rarely found in the gastrointestinal tract. To our knowledge, EMH involving the appendix was not described. We report a case with a previous history of idiopathic myelofibrosis, which presented with clinical findings of acute appendicitis that necessitate appendectomy after the relief of his anemia.

Unilateral pulmonary agenesis associated with colloidal goiter in a newborn: a case report.

Unilateral pulmonary agenesis is a very rare developmental malformation that is often associated with other anomalies. It can be asymptomatic or present with respiratory symptoms. Our case is a female newborn infant who had been taken to the hospital suffering from difficulty in breathing at the first day of birth.