Difference between revisions of "Spindle cell lesions"

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==Malignant fibrous histiocytoma==
==Malignant fibrous histiocytoma==
Work-up (MSH):
Work-up (MSH):
*CD34 - GIST, angiosarcoma, solitary fibrous tumour/hemangiopericytoma, Kaposi sarcoma.
*CD34 - [[GIST]], [[angiosarcoma]], [[solitary fibrous tumour]]/[[hemangiopericytoma]], [[Kaposi sarcoma]].
*S100 - neural marker, sensitive for malignant melanoma, Langerhans cells, clear cell sarcoma.
*S100 - neural marker, sensitive for malignant melanoma, Langerhans cells, [[clear cell sarcoma]].
*Desmin - smooth muscle.
*Desmin - smooth muscle.
*MIB1 - proliferation.
*MIB1 - proliferation.
*CD99 - immature T cells (thymus), small round cell tumours, synovial sarcoma, merkel cell carcinoma, osteosarcoma.<ref name=Ref_DCHH108>{{Ref DCHH|108}}</ref>
*CD99 - immature T cells (thymus), small round cell tumours, [[synovial sarcoma]], merkel cell carcinoma, [[osteosarcoma]].<ref name=Ref_DCHH108>{{Ref DCHH|108}}</ref>
**Considered "slutty", i.e. non-specific, by Dr. Fletcher; useful if membranous stain pattern = Ewing sarcoma/PNET.
**Considered "slutty", i.e. non-specific, by Dr. Fletcher; useful if membranous stain pattern = Ewing sarcoma/PNET.
*BCL2 - synovial sarcoma, [[small cell lymphomas]], spindle cell lipoma.<ref name=Ref_DCHH107>{{Ref DCHH|107}}</ref><ref>URL: [http://ajp.amjpathol.org/cgi/content/full/160/3/759 http://ajp.amjpathol.org/cgi/content/full/160/3/759]. Accessed on: 3 August 2010.</ref>
*BCL2 - [[synovial sarcoma]], [[small cell lymphomas]], spindle cell lipoma.<ref name=Ref_DCHH107>{{Ref DCHH|107}}</ref><ref>URL: [http://ajp.amjpathol.org/cgi/content/full/160/3/759 http://ajp.amjpathol.org/cgi/content/full/160/3/759]. Accessed on: 3 August 2010.</ref>
*PGP 9.5.
*PGP 9.5.
*SMMS - smooth muscle.
*SMMS - smooth muscle.