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Difference between revisions of "Fibroblastic/myofibroblastic tumours"
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Fibroblastic/myofibroblastic tumours (view source)
Revision as of 23:15, 5 May 2012
, 23:15, 5 May 2012→Solitary fibrous tumour
(→Solitary fibrous tumour: +malignant) |
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| Line 318: | Line 318: | ||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features - benign: | ||
*Spindle cells in a patternless pattern. | *Spindle cells in a patternless pattern. | ||
*Hemangiopericytoma-like area ([[staghorn vessels]]). | *Hemangiopericytoma-like area ([[staghorn vessels]]). | ||
| Line 324: | Line 324: | ||
*Usually well-circumscribed. | *Usually well-circumscribed. | ||
Criteria for malignancy:<ref>{{Ref WMSP|609}}</ref> | Criteria for malignancy:<ref name=Ref_WMSP609>{{Ref WMSP|609}}</ref> | ||
*Necrosis. | *Necrosis. | ||
*Mitoses >4/10 HPF | *Mitoses >4/10 HPF -- definition suffers from [[HPFitis]]. | ||
*Increased cellularity. | *Increased cellularity. | ||
*Marked nuclear atypia. | *Marked nuclear atypia. | ||
| Line 333: | Line 333: | ||
Images: | Images: | ||
*[[WC]]: | *[[WC]]: | ||
**[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_low_mag.jpg SFT - low mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_low_mag.jpg Benign SFT - low mag. (WC)]. | ||
**[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_intermed_mag.jpg SFT - intermed. mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_intermed_mag.jpg Benign SFT - intermed. mag. (WC)]. | ||
**[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_high_mag.jpg SFT - high mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Solitary_fibrous_tumour_high_mag.jpg Benign SFT - high mag. (WC)]. | ||
*www: | *www: | ||
**[http://path.upmc.edu/cases/case272.html SFT of the brain - several images (upmc.edu)]. | **[http://path.upmc.edu/cases/case272.html SFT of the brain - several images (upmc.edu)]. | ||