| Round Cell Liposarcoma Presenting as an FDG-Positive Primary With an FDG-Negative Retroperitoneal Metastasis: A Pitfall for F-18 FDG PET/CT Imaging. | |
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MedLine Citation:
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PMID: 22064114 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A 34-year-old man, who presented with a 10-month history of an enlarging right ankle mass histologically proven to be a round cell/myxoid liposarcoma, was referred for an F-18 FDG PET/CT scan, which showed a heterogenous FDG-positive primary in the ankle and a 1.2-cm, FDG-negative, retroperitoneal lipid-attenuating nodule. On a follow-up PET/CT scan done 1 year later, the retroperitoneal nodules had grown into an 11-cm mass, which became FDG-positive and was subsequently histologically confirmed to be a liposarcoma metastasis. We present the imaging characteristics of this highly unusual case and a possible histologic explanation for the false-negative retroperitoneal metastasis on the staging PET/CT scan. |
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Authors:
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Rajan Rakheja; William Makis; Ayoub Nahal; Yazan Z Alabed; Gad Abikhzer; Stephan Probst; Marc Hickeson |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical nuclear medicine Volume: 36 ISSN: 1536-0229 ISO Abbreviation: Clin Nucl Med Publication Date: 2011 Dec |
Date Detail:
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Created Date: 2011-11-08 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7611109 Medline TA: Clin Nucl Med Country: United States |
Other Details:
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Languages: eng Pagination: e213-6 Citation Subset: IM |
Affiliation:
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From the *Department of Nuclear Medicine, Royal Victoria Hospital, Montreal, Quebec, Canada; †Department of Nuclear Medicine, Brandon Regional Health Centre, Brandon, Manitoba, Canada; ‡Musculoskeletal Division, Department of Pathology, Montreal General Hospital, Montreal, Quebec, Canada; and §Division of Nuclear Medicine, Jewish General Hospital, Montreal, Quebec, Canada. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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