Radiologic spectrum of extramedullary relapse of myelogenous leukemia in adults

Jan Fritz, Wichard Vogel, Roland Bares, Marius Horger

Research output: Contribution to journalArticle


OBJECTIVE. Chloroma, also know as granulocytic sarcoma, is a localized extramedullar tumor composed of malignant cells of the myeloid cell line. It occurs most frequently secondary to a history of myelogenous leukemia as extramedullar relapse. New treatment regimens, including allogeneic stem cell transplantation, extensive use of donor lymphocyte infusion, and second transplantation, are associated with increased rates of chloroma of up to 21%. The purpose of this article is to highlight the sites of involvement as well as the morphologic and imaging features of chloroma in patients with myelogenous leukemia. CONCLUSION. Allogeneic stem cell transplantation now represents the treatment of choice for leukemia and for patients with leukemia relapse. Therefore, the rate of chloroma is likely to increase. Because clinical and laboratory data are frequently not indicative, radiologic diagnosis of chloroma will become more important.

Original languageEnglish (US)
Pages (from-to)209-218
Number of pages10
JournalAmerican Journal of Roentgenology
Issue number1
StatePublished - Jul 1 2007


  • Leukemia
  • Oncologic imaging
  • Oncology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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