transforming growth factor atpha (tgf-a), parathyroid hormone-tike proteins (pthlp) and oncogene p53 proteins have all been demonstrated in a variety of human tumors anil have been implicated as causes of tumor cell aggressiveness. the present study determined the existence of these peptides and their immunohistochemicat profiles in ameloblastomas. odontogenic keratocysts and dentigerous cysts ...

purpose: to assess the histopathological and immunohistochemical features of orbital spindle cell tumors. methods: a descriptive, retrospective study was performed on 63 pathology reports on all types of orbital spindle cell tumors at the pathology department of farabi hospital between 1995 and 2005. immunohistochemistry studies for different markers, such as smooth muscle actin, desmin, s100 p...

Diffuse large B-cell lymphoma (DLBCL) of the heart accounts for only 1% primary cardiac tumors. Histopathologic examination becomes key diagnosis and immunohistochemical evaluation non-Hodgkin (NHL) subtype determination is able to predict disease progression therapeutical modality. Case description: 70-year-old man complained shortness breath. Echocardiographic revealed mass occupied left atri...

Glutathione S-transferases (GSTs) are enzymes involved in the detoxification of xenobiotics and are divided into four subclasses. Alpha, Mu, Pi and Theta. Most human gastrointestinal tumors contain increased amounts of GST Pi. In order to compare data on the expression of GSTs obtained by biochemical as well as immunohistochemical methods, we characterized the presence of GST Alpha and Pi by We...

the investigation and determination of the significance of neovascularization in the progression of soft tissue sarcoma is currently of increasing clinical importance. microvessel density is the morphologic evidence of neoangiogenesis in the process of malignant progression of sarcomata. this brief review of the markers commonly used in clinical practice was undertaken to determine the validity...