Hemodialysis access stenosis is a pervasive problem that occurs due to the physiology of high-flow circuit. Stenosis endothelial and smooth muscle injuries result in neointimal hyperplasia. Percutaneous transluminal angioplasty standard treatment for dialysis access-induced stenosis. Unfortunately, it also associated with vessel wall trauma, which causes further intimal hyperplasia restenosis. ...

INTRODUCTION Intravascular papillary endothelial hyperplasia (Masson's hemangioma or Masson's tumor) is a benign vascular disease with an exuberant endothelial proliferation in normal blood vessels. Although relatively uncommon, its correct diagnosis is important because it can clinically be like both benign lesions and malignant neoplasms. We present a case of intravascular proliferative endot...

Blood vessels respond to injury through a healing process that includes neointimal hyperplasia. The vascular endothelium is a monolayer of cells that separates the outer vascular wall from the inner circulating blood. The disruption and exposure of endothelial cells (ECs) to subintimal components initiate the neointimal formation. ECs not only act as a highly selective barrier to prevent early ...

Intracardiac papillary endothelial hyperplasia is seen very rare in the literature. This report describes the case of a 65-year old male patient who had intracardiac neoplasm behind the right coronary aortic cusp. The lesion was treated successfully by surgical excision. According to histopathological analysis the diagnosis was papillary endothelial hyperplasia. The patient was discharged witho...

Intravascular papillary endothelial hyperplasia (Masson's hemangioma) is an unusual benign, non-neoplastic, vascular lesion characterized histologically by papillary fronds lined by proliferating endothelium. It may appear as a primary or pure form developing in a distended vessel, or it can be associated with hemangiomas, pyogenic granulomas, or lymphagiomas. Nearly all lesions are intimately ...

BACKGROUND Intravascular papillary endothelial hyperplasia (IPEH), also known as masson tumour, is a lesion composed of proliferating endothelial cells. CASE REPORT In this article we explained clinical, histological and radiological features of IPEH involving the scalp, localized on the left side of the skull and in the periauricular region. CONCLUSIONS Radiologically, intravascular papill...

I T HAS long been recognized that visceral leishmaniasis (kala-azar) is accompanied by marked changes in the peripheral blood, namely; pronounced leukopenia, anemia and thrombocytopenia.'' Pathologically, the disease is characterized by a marked hyperplasia of the reticulo-endothelial system, particularly of the spleen, liver, bone marrow and lymph nodes. As a result of this reticulo-endothelia...