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Frontiers of Medicine >> 2017, Volume 11, Issue 3 doi: 10.1007/s11684-017-0523-x

Philadelphia chromosome-positive acute myeloid leukemia with masses and osteolytic lesions: finding of 18F-FDG PET/CT

1. Department of Haematology, Qilu Hospital, Shandong University, Jinan 250012, China.

2. Department of Haematology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China.

3. PET/CT Center, The Affiliated Hospital of Qingdao University, Qingdao 266000, China.

4. Department of Hepatobiliary Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, China.

5. Department of Haematology, Qingdao University Medical College, Qingdao 266071, China

Available online: 2017-08-29

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Abstract

Philadelphia chromosome-positive acute myeloid leukemia is controversial and difficult to distinguish from the blast phase of chronic myeloid leukemia. As a myeloid neoplasm, rare cases of this leukemia manifest multiple soft-tissue tumors or bone lytic lesions. In this paper, we describe a 49-year-old male patient who had an abrupt onset with sharp chest pain, fever, fatigue, emaciation, and splenomegaly. 18F-fluoro-deoxy-glucose positron emission tomography/computed tomography (18F-FDG PET/CT) result showed diffuse and uneven hypermetabolic lesions in the bone marrow with peripheral bone marrow expansion, multiple soft tissue neoplasms with high 18F-FDG uptake, and lytic bone lesions. Bone marrow smear and biopsy detected aberrant blast cells expressing myeloid rather than lymphoid immunophenotype marker. For the existence of Philadelphia chromosome and BCR-ABL1 fusion gene together with complex chromosome abnormalities, a diagnosis of Philadelphia-positive acute myeloid leukemia was made, although the type (de novo or blast crisis) remained unclear.

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