A highly malignant neoplasia that readily metastasizes to the medial iliac lymph nodes. May also lead to paraneoplastic hypercalcaemia due to parathyroid hormone-related peptide.
==Diagnosis==
==Diagnosis==
===History and Clinical Signs===
===History and Clinical Signs===
See [[Anal Sac Disease - General - WikiClinical|Anal Sac Disease - General]]
See [[Anal Sac Disease - General - WikiClinical|Anal Sac Disease - General]]
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Also:
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*Flattened stools
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*Pernieal swelling
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*Hypercalcaemia signs including polydipsia and polyuria.