previously described [3]. EMH may also involve periCase History renal tissue and the collecting system [4–6 ]. In this case extramedullary haematopoiesis was found in the A 58-year-old man, diagnosed with myelofibrosis 9 renal medulla and in the hilar connective tissue where years previously, presented with a 2 month history of it was associated with myelofibrotic tissue similar to increasing b...