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*#* Small, white plaques on serosa and adjacent tissues e.g. diaphragm.
*#* Small, white plaques on serosa and adjacent tissues e.g. diaphragm.
==Tumours of the Perianal Area==
===Adenocarcinomas of the Glands of the Anal Sac (Apocrine Glands)===
* Apocrine glands are the true anal glands- not to be confused with the anal sacs or the perianal glands.
* Much less common than intestinal adenocarcinoma.
* Commoner in bitches than dogs.
* Can be bilateral.
* Consequences:
** May cause local problems.
** May metastasise.
** Often secrete a parahormone-like substance to cause paraneoplastic syndrome.
*** This can arise even when the primary tumour is very small.
*** Results in bone resorption and hypercalcaemia,
**** In turn can cause renal failure. which in turn can cause renal failure.