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Difference between revisions of "Chondro-osseous tumours"
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→Osteoid osteoma: +SO
(→Osteoid osteoma: +SO) |
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==Osteoid osteoma== | ==Osteoid osteoma== | ||
*Abbreviated ''OO'. | |||
===General=== | ===General=== | ||
*Benign bone lesion. | *Benign bone lesion. | ||
| Line 547: | Line 548: | ||
Note: | Note: | ||
*Histomorphologically near identical/indistinguishable from ''[[osteoblastoma]]'' | *Histomorphologically near identical/indistinguishable from ''[[osteoblastoma]]'';<ref name=Ref_Sternberg4_286>{{Ref Sternberg4|286}}</ref> one needs some history to make the diagnosis. | ||
====Images==== | ====Images==== | ||
<gallery> | <gallery> | ||
Image:Osteoid_osteoma_-_low_mag.jpg | Osteoid osteoma - low mag. (WC) | Image:Osteoid_osteoma_-_low_mag.jpg | Osteoid osteoma - low mag. (WC) | ||
Image:Osteoid osteoma - intermed mag.jpg | Osteoid osteoma - intermed. mag. (WC) | |||
Image:Osteoid_osteoma_-_high_mag.jpg | Osteoid osteoma - high mag. (WC) | Image:Osteoid_osteoma_-_high_mag.jpg | Osteoid osteoma - high mag. (WC) | ||
Image:Osteoid osteoma - very high mag.jpg | Osteoid osteoma - very high mag. (WC) | |||
</gallery> | </gallery> | ||
www: | www: | ||
*[http://library.med.utah.edu/WebPath/COW/COW211.html Osteoid osteoma - CT scan (med.utah.edu)]. | *[http://library.med.utah.edu/WebPath/COW/COW211.html Osteoid osteoma - CT scan (med.utah.edu)]. | ||
*[http://www.sciencephoto.com/images/imagePopUpDetails.html?pop=1&id=700030210&pviewid=&country=67&search=gschmeissners&matchtype=FUZZY Osteoid osteoma (sciencephoto.com)]. | *[http://www.sciencephoto.com/images/imagePopUpDetails.html?pop=1&id=700030210&pviewid=&country=67&search=gschmeissners&matchtype=FUZZY Osteoid osteoma (sciencephoto.com)]. | ||
===Sign out=== | |||
<pre> | |||
BONE, RIGHT FEMUR, EXCISION: | |||
- OSTEOID OSTEOMA. | |||
</pre> | |||
====Micro==== | |||
The sections show anastomosing bony trabeculae with variable mineralization and osteoblastic rimming. Multinucleated osteoclasts are scattered through the lesion. Hemosiderin-laden macrophages are present. No osteocyte nuclear atypia is apparent. Mitotic activity is not apparent. The osteoid is not lace-like. | |||
==Osteoblastoma== | ==Osteoblastoma== | ||