%0 Journal Article %T Extramedullary hematopoiesis within endothelial papillary hyperplasia (Masson£¿s pseudoangiosarcoma) of the tongue %A Santonja %A Carlos %A Sus %A Jes¨²s de %A Morag¨®n %A Manuel %J Medicina Oral, Patolog¨ªa Oral y Cirug¨ªa Bucal (Internet) %D 2007 %I Scientific Electronic Library Online %X we report the unique association of masson£¿s pseudoangiosarcoma (endothelial papillary hyperplasia) and extramedullary hematopoiesis. the lesion was present as a violaceous nodule on the side of the tongue of a 78-year-old man with history of multiple myeloma and long-standing mild anemia. this association between a peculiar form of thrombus organization and extramedullary hematopoiesis has been reported previously only once, in an infant with a cranial hematoma, and raises interesting pathogenetic questions. %K extramedullary hematopoiesis %K intravascular endothelial papillary hyperplasia %K tongue %K thrombus organization. %U http://scielo.isciii.es/scielo.php?script=sci_abstract&pid=S1698-69462007000800003&lng=en&nrm=iso&tlng=en