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Difference between revisions of "Soft tissue lesions"
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→Tumours of uncertain differentiation: +images, chondrosarcoma
(re-order more) |
(→Tumours of uncertain differentiation: +images, chondrosarcoma) |
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***EWSR1-ATF1. | ***EWSR1-ATF1. | ||
***EWSR1-CREB1 (GI tract associated). | ***EWSR1-CREB1 (GI tract associated). | ||
==Chondrosarcoma== | |||
*May arise from an ''enchondroma''. | |||
*Usually a good prognosis. | |||
===Microscopic=== | |||
Features: | |||
*Resembles cartilage at low power.<ref>Klatt. AOP P.417.</ref> | |||
*More cellular than cartilage... but relatively paucicellular compared to other sarcomas. | |||
Images: | |||
*[http://commons.wikimedia.org/wiki/File:Chondrosarcoma_(1).jpg Chondrosarcoma - low mag. (WC)]. | |||
*[http://commons.wikimedia.org/wiki/File:Chondrosarcoma_(2).jpg Chondrosarcoma - high mag. (WC)]. | |||
*[http://commons.wikimedia.org/wiki/File:Chondrosarcoma_(3).jpg Chondrosarcoma - high mag. (WC)]. | |||
====Grading==== | |||
Features:<ref>WMSP P.643.</ref> | |||
*Grade I: moderate cellularity +/- binucleated cells. | |||
*Grade III: nuclear pleomorphism, mitoses common. | |||
*Grade II: between Grade I and Grade III. | |||
=See also= | =See also= | ||