https://www.vetsurgeon.org/f/clinical-questions/26811/extraskeletal-osteosarcoma-in-cat Fast growing not painful at palpation citology came with Extraskeletal osteosarcoma. cat 6 yo male BP ok.. TXray clean...abdominal ultrasound fine...kind of atypical spot for a osteosarcoma right?? You guys think the only way now is total amputationen-USTelligent Community 10https://www.vetsurgeon.org/thread/194770?ContentTypeID=1Thu, 22 Mar 2018 18:29:28 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:995ef19f-dd42-47a5-8e51-6d42431d90b0Tomas B<p>Thank you all for the replies.</p> <p>Thank you Gerry for all the advices. Owners choosed high limb aputation. First some blood parameters and 2 proj chest x ray- if ok- Surgery</p> <p>Is growing so fast. now the cat started limping, and is continuously licking the &quot;wound&quot;. Hope those hock based sarcoma dont happen....</p> <p></p> <p></p> <p>Tom&aacute;s</p> <p></p><div style="clear:both;"></div>https://www.vetsurgeon.org/thread/194661?ContentTypeID=1Wed, 21 Mar 2018 08:48:35 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:d2479b00-a933-45be-a0ef-97ea8cfb5fbaGerry Polton<p>Hi</p> <p>Interestingly, this kind of lesion is happening with increasing frequency since the recognition of injection site sarcoma as an entity and the recommendation that vaccinations are administered in the lower limb.</p> <p>It is impossible to argue with the recommendation that CT be performed to optimally check for presence or absence of metastasis. Reports vary but we consider metastasis to be present in approximately 30% of these cases.</p> <p>Extraskeletal osteosarcoma is a thing in cats. Osseous differentiation can happen in a high grade tumour of soft tissues (deliberately avoiding saying soft tissue sarcoma because that is not exactly what I mean). Basically, for our purposes, they behave much the same way as mother high grade soft tissue sarcomas.</p> <p>Amputation is likely to be the best treatment for this case. Please be aware that I have seen cases that have recurred at the site of high (hip disarticulation) amputation for a hock based sarcoma so do not state to the owner that amputation will definitely prove curative. It probably will but we cannot say it definitely will.</p> <p>Yours</p> <p>Gerry</p><div style="clear:both;"></div>https://www.vetsurgeon.org/thread/194654?ContentTypeID=1Tue, 20 Mar 2018 20:46:30 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:a33368d1-3982-4538-881d-c95187b6ebd7nick shackleton<p>Metastatic check with CT?&nbsp;</p><div style="clear:both;"></div>https://www.vetsurgeon.org/thread/194630?ContentTypeID=1Tue, 20 Mar 2018 13:25:05 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:077eb2ba-ec3f-4576-b097-ee7785cf1286Richard Carter<p>was a webinar last night covering feline TB and mycobacteria and one of the comments was metastatic calcification in strange places has been incorrectly diagnosed as osteosarc before (on xray) - would have thought if it is an osteosarcoma without bone involvement, then it probably is a secondary mass which would make the prognosis horrible.</p><div style="clear:both;"></div>https://www.vetsurgeon.org/thread/194612?ContentTypeID=1Tue, 20 Mar 2018 00:54:34 GMT146601cc-3922-4be7-9974-7e1d4e45a66b:460724f9-6314-4b70-8049-c8d9feb663f0Tomas B<p>THe metatarsal bone at the x ray is not envolved so far..</p><div style="clear:both;"></div>