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==Description==
==Description==
A highly malignant neoplasia that readily metastasizes to the medial iliac lymph nodes. Around 50% may lead to paraneoplastic hypercalcaemia due to parathyroid hormone-related peptide (PTH-rP). The tumours can be between 1 and 10cm in size and 50% of them will metastasize.
A highly malignant neoplasia that readily metastasizes to the medial iliac lymph nodes. Around 50% may lead to paraneoplastic hypercalcaemia due to parathyroid hormone-related peptide (PTH-rP). The tumours can be between 1 and 10cm in size and 50% of them will metastasize.
Potential postoperative complications include infection, wound dehiscence, faecal incontinence and in 25% of cases, local recurrence. Hypercalcaemia reoccurs in 35-50% of cases due to metastases. Serum calcium levels should therefore be regularly checked along with evidence of mass regrowth. Post-op survival ranges between 2 and 39 months with the average being 8 months.
Potential postoperative complications include infection, wound dehiscence, faecal incontinence and in 25% of cases, local recurrence. Hypercalcaemia reoccurs in 35-50% of cases due to metastases. Serum calcium levels should therefore be regularly checked along with evidence of mass regrowth. Post-op survival ranges between 2 and 39 months with the average being 8 months.
{{Learning
|literature search =
[http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Anal+Sac%22+&occuring1=title&rowId=4&options4=AND&q4=adenocarcinoma&occuring4=title&x=37&y=10&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all Anal Sac Adenocarcinoma publications]
[http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=%22Anal+Sac%22+&occuring1=title&rowId=4&options4=AND&q4=adenocarcinoma&occuring4=title&x=37&y=10&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all Anal Sac Adenocarcinoma publications]
}}
==References==
==References==
Dobson, J.M. and Lascelles, B.D.X. (2003) '''BSAVA Manual of Canine and Feline Oncology (2nd Edition)''' ''BSAVA''
Dobson, J.M. and Lascelles, B.D.X. (2003) '''BSAVA Manual of Canine and Feline Oncology (2nd Edition)''' ''BSAVA''
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[[Category:Recto-Anal_-_Pathology]]
[[Category:Recto-Anal_-_Pathology]]