Liposarcoma differential diagnosis: Difference between revisions

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Differential diagnosis includes nonadipo- cytic lesions such as inflammatory myofibroblastic tu- mor and Castleman’s disease.<ref name="pmid10982304">{{cite journal| author=Dei Tos AP| title=Liposarcoma: new entities and evolving concepts. | journal=Ann Diagn Pathol | year= 2000 | volume= 4 | issue= 4 | pages= 252-66 | pmid=10982304 | doi=10.1053/adpa.2000.8133 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10982304  }} </ref>


Main differential diag- noses include spindle cell lipoma (composed of bland, sometimes palisading, CD34-positive spindle cells, ad- mixed with eosinophilic refractile collagen bundles), neurofibroma (characterized by a less cellular S-100– positive spindle cell proliferation with wavy nuclei), dermatofibrosarcoma protuberans (cytologically bland, monomorphic CD34-positive spindle cell proliferation organized in a distinctive storiform growth pattern and characterized by tendency to infiltrate the surrounding fat in a peculiar ‘‘honeycomb’’ pattern), malignant peripheral nerve sheath tumor (generally highly cellular tumors composed of tapering or wavy spindle cells featuring perivascular accentuation and focal S-100– positive immunoreactivity in approximately 50% of cases), and well-differentiated sclerosing liposarcoma (characterized by the presence of bizarre hyperchro- matic stromal cells set in fibrillary collagen). The pres- ence of an atypical lipomatous component also permits distinction from low-grade fibromyxoid sarcoma (Evans’ tumor). Interestingly, spindle cell liposarcoma exhibits chromosome changes (ring chromosomes and giant marker chromosomes) identical to those observed in other members of the well-differentiated liposarcoma group, thus validating its classification.<ref name="pmid10982304">{{cite journal| author=Dei Tos AP| title=Liposarcoma: new entities and evolving concepts. | journal=Ann Diagn Pathol | year= 2000 | volume= 4 | issue= 4 | pages= 252-66 | pmid=10982304 | doi=10.1053/adpa.2000.8133 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10982304  }} </ref>
Differential diagnosis includes nonadipocytic lesions such as inflammatory myofibroblastic tumor and Castleman’s disease.<ref name="pmid10982304">{{cite journal| author=Dei Tos AP| title=Liposarcoma: new entities and evolving concepts. | journal=Ann Diagn Pathol | year= 2000 | volume= 4 | issue= 4 | pages= 252-66 | pmid=10982304 | doi=10.1053/adpa.2000.8133 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10982304  }} </ref>
Few are tabulated below.


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{| style="border: 0px; font-size: 90%; margin: 3px; width:600px" align=center
|valign=top|
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! style="background: #4479BA; width: 200px;" | {{fontcolor|#FFF|Disease}}
! style="background: #4479BA; width: 400px;" | {{fontcolor|#FFF|Description}}
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" | Spindle cell lipoma
| style="padding: 5px 5px; background: #F5F5F5;" |Composed of bland, sometimes palisading, CD34-positive spindle cells, ad- mixed with eosinophilic refractile collagen bundles
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |Neurofibroma
| style="padding: 5px 5px; background: #F5F5F5;" |Characterized by a less cellular S-100– positive spindle cell proliferation with wavy nuclei
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |Dermatofibrosarcoma protuberans
| style="padding: 5px 5px; background: #F5F5F5;" |Cytologically bland, monomorphic CD34-positive spindle cell proliferation organized in a distinctive storiform growth pattern and characterized by tendency to infiltrate the surrounding fat in a peculiar ‘‘honeycomb’’ pattern
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |Malignant peripheral nerve sheath tumor
| style="padding: 5px 5px; background: #F5F5F5;" | Generally highly cellular tumors composed of tapering or wavy spindle cells featuring perivascular accentuation and focal S-100– positive immunoreactivity in approximately 50% of cases
 
<ref name="pmid10982304">{{cite journal| author=Dei Tos AP| title=Liposarcoma: new entities and evolving concepts. | journal=Ann Diagn Pathol | year= 2000 | volume= 4 | issue= 4 | pages= 252-66 | pmid=10982304 | doi=10.1053/adpa.2000.8133 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=10982304  }} </ref>
|}


==References==
==References==
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Revision as of 18:18, 21 September 2014

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Differential diagnosis includes nonadipocytic lesions such as inflammatory myofibroblastic tumor and Castleman’s disease.[1] Few are tabulated below.

Disease Description
Spindle cell lipoma Composed of bland, sometimes palisading, CD34-positive spindle cells, ad- mixed with eosinophilic refractile collagen bundles
Neurofibroma Characterized by a less cellular S-100– positive spindle cell proliferation with wavy nuclei
Dermatofibrosarcoma protuberans Cytologically bland, monomorphic CD34-positive spindle cell proliferation organized in a distinctive storiform growth pattern and characterized by tendency to infiltrate the surrounding fat in a peculiar ‘‘honeycomb’’ pattern
Malignant peripheral nerve sheath tumor Generally highly cellular tumors composed of tapering or wavy spindle cells featuring perivascular accentuation and focal S-100– positive immunoreactivity in approximately 50% of cases

[1]

References

  1. 1.0 1.1 Dei Tos AP (2000). "Liposarcoma: new entities and evolving concepts". Ann Diagn Pathol. 4 (4): 252–66. doi:10.1053/adpa.2000.8133. PMID 10982304.


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