Perivascular epithelioid cell tumors (PEComas) refers to a family of mesenchymal neoplasms composed of angiomyolipomas, clear cell "sugar" tumors of the lung, and lymphangioleiomyomatoses. These tumors have a distinctive and common component of perivascular epithelioid cells that show an association with blood vessel walls and immunohistochemically display myomelanocytic differentiation. The un...

Gastrointestinal stromal tumor (GIST) is a rare form of mesenchymal tumor of the gastrointestinal tract, accounting for 1% of malignant neoplasms [1]. Most gastrointestinal mesenchymal tumors are GISTs, originating from interstitial cells of Cajal or precursors of these cells. Although several reports regarding GIST have incrementally advanced our understanding of this condition in recent years...

Proteoglycans (PGs) and in particular the syndecans are involved in the differentiation process across the epithelial-mesenchymal axis, principally through their ability to bind growth factors and modulate their downstream signaling. Malignant tumors have individual proteoglycan profiles, which are closely associated with their differentiation and biological behavior, mesenchymal tumors showing...

Abstract The interaction between LncRNA and RNA-binding protein (RBPs) plays an essential role in the regulation over malignant progression of tumors. Previous studies on mechanism SNHG1 , emerging lncRNA, have primarily focused competing endogenous RNA (ceRNA) mechanism. Nevertheless, underlying RBPs tumors remains to be explored, especially prostate cancer (PCa). expression profiles PCa were ...

Introduction: Different imaging modalities are used to evaluate salivary gland diseases, including tumors. Ultrasonography (US) is the preferred method on account of its ease of use, affordability, safety profile, and good tolerance among patients. The aim of this study was to evaluate the role of US in differentiating malignant from benign parotid tumors, in the context of previous controversy...

INTRODUCTION Solitary fibrous tumors of the pleura (SFTP) are primary tumors arising from mesenchymal cells. Immunohistochemical studies have demonstrated that the origin of these tumors is mesenchymal rather than mesothelial. The aim of this study is to present our experience with diagnosing and treating patients with SFTP. MATERIAL AND METHODS We analyzed 18 patients treated at the Departme...

Background Gastrointestinal stromal tumors are mesenchymal neoplasms of the gastrointestinal tract, arising from the muscular layer. Revent immunohistochemical studies have shown that up to 94% of GISTs express 117, and 60–70% of GISTs stain for CD 34. GISTs account for 1% of all malignant tumors of gastrointestinal tract; they arise from stomach in the 40–60% of cases whereas they account only...

abstract gastrointestinal mesenchymal tumors are a group of tumors originating from the mesenchymal stem cells of the gi tract. digestive tract schwannomas are rare mesenchymal tumors which occur most frequently in the stomach. we report a 56-yearold woman who was examined endoscopically for dyspepsia which she had suffered from since 3 years ago. around gastric antral mass was seen. surgical r...

BACKGROUND It is important to distinguish gastrointestinal stromal tumors (GISTs) from other gastrointestinal mesenchymal tumors (GIMTs), because of the malignant potential of GISTs and the availability of molecular targeted therapy. GISTs represent the most common subgroup of GIMTs, and rarely occur in the colon and rectum. The first objective of our retrospective study was to reclassify color...

It is estimated that a quarter of all feline neoplasms affect the integumentary system. Cytological examination admirable importance for detection in companion animals, being considered simple and non-invasive method. To date, there are limited information regarding prevalence skin cancer as well use cytopathology diagnostic tool. In this sense, study aimed to characterize cutaneous subcutaneou...