Extramedullary hematopoiesis within endothelial papillary hyperplasia (Masson's pseudoangiosarcoma) of the tongue.
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.
Santonja
Carlos
C
Department of Pathology, Fundación Jiménez Díaz, Madrid. csantonja@fjd.es
de Sus
Jesús
J
Moragón
Manuel
M
D000368:Aged; D006411:Hematopoiesis, Extramedullary; D006801:Humans; D006965:Hyperplasia / Q000150:complications; D008297:Male; D014059:Tongue / Q000473:pathology*