Document Detail


Dedifferentiated liposarcoma of the retroperitoneum with osteosarcomatous component: report of two cases.
MedLine Citation:
PMID:  19135935     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We describe two cases of ossified soft tissue tumors of the retroperitoneum. Computed tomographic and magnetic resonance imaging both revealed retroperitoneal masses consisting of two components -- densely ossified and lipid-rich components. In one case, a 50-year-old man, a histological diagnosis of dedifferentiated liposarcoma with osteosarcoma was made based on the needle biopsy of the two components. In another case, a 54-year-old man, surgical resection of the complex perirenal mass was performed and the same diagnosis was made. Although an ossified component represent high-grade lesion, the fatty component is an important clue to the diagnosis of dedifferentiated liposarcoma. The imaging features may be similar to those of malignant mesenchymoma, which is not a currently used term.
Authors:
Takashi Toshiyasu; Shigeru Ehara; Takehiko Yamaguchi; Jun Nishida; Hideo Shiraishi
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Clinical imaging     Volume:  33     ISSN:  1873-4499     ISO Abbreviation:  Clin Imaging     Publication Date:    2009 Jan-Feb
Date Detail:
Created Date:  2009-01-12     Completed Date:  2009-04-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8911831     Medline TA:  Clin Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  70-4     Citation Subset:  IM    
Affiliation:
Department of Radiology, Iwate Medical University School of Medicine, Morioka, Japan.
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MeSH Terms
Descriptor/Qualifier:
Humans
Liposarcoma / radiography*
Male
Middle Aged
Neoplasms, Multiple Primary / radiography*
Osteosarcoma / radiography*
Retroperitoneal Neoplasms / radiography*
Tomography, X-Ray Computed / methods*

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