Hematopoietic tumor of the renal hilus.
D006410:Hematopoiesis; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D055728:Primary Myelofibrosis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery