• An asymptomatic skin nodule in a patient with myelofibrosis was shown to consist of extramedullary hematopoiesis. It was a soft bluish nodule that resembled a hemangioma. Microscopically, both erythroid and myeloid cells, but not megakaryocytes, were found. This case demonstrates the ability of the skin to recapitulate dermal hematopoiesis seen in a stage of human fetal development.
(Arch Dermatol 112:1302-1303, 1976)
Kuo T, Uhlemann J, Reinhard EH. Cutaneous Extramedullary HematopoiesisReport of a Case. Arch Dermatol. 1976;112(9):1302-1303. doi:10.1001/archderm.1976.01630330064018