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Advances in Hematology
Volume 2010 (2010), Article ID 137608, 7 pages
Case Report

Promyelocytic Sarcoma of the Spine: A Case Report and Review of the Literature

1Hematology and BMT Unit, Institute of Hematotherapy, Ospedale S. Camillo, 00153 Rome, Italy
2Department of Biopathology, Tor Vergata University, 00133 Rome, Italy

Received 5 August 2009; Accepted 15 January 2010

Academic Editor: Stefan Faderl

Copyright © 2010 Leonardo Pacilli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Myeloid sarcoma (MS, previously named granulocytic sarcoma or chloroma) is a rare extramedullary tumour of immature myeloid cells. It can be present before, concurrently with, or after the diagnosis of acute myeloid leukemia. MS is extremely uncommon in acute promyelocytic leukemia (APL). In the case described here, MS was the sole site of APL relapse and the cause of spinal cord compression. The patient presented with neurologic symptoms due to a paravertebral mass of MS after 7 years of complete remission. He was treated with excision of the mass followed by local radiotherapy. Systemic treatment was also given with combined arsenic trioxide and all-trans retinoic acid and the patient was able to achieve a second prolonged clinical and molecular remission.