Difference between revisions of "Category:Intestines - Proliferative Pathology"

Revision as of 19:40, 6 June 2010

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.

The following 4 pages are in this category, out of 4 total.

@@ Line 12: / Line 12: @@
 == Intestinal stromal tumours ==
-==Tumours of the Perianal Area==
-===Hepatoid Gland Tumours (Perianal Adenomas)===
-[[Image:normal perianal gland.jpg|thumb|right|100px|Perianal gland- normal (Courtesy of Bristol BioMed Image Archive)]]  * Affect the dog.
-* Arise from the solid, modified sebaceous circumanal glands.
-* Common in ageing entire males. [[Image:perianal gland adenoma histopath.jpg|thumb|100px|Perianal gland- adenoma (Courtesy of Bristol BioMed Image Archive)]]
-* Lesions range from hyperplasia to true adenomas (benign).
-** These low grade lesions are under hormonal control.
-*** Castration/ administation of oestrogens or anti-androgens causes reduction in size.[[Image:perianal gland adenoma.jpg|thumb|right|100px|Perianal adenoma- gross appearance (Courtesy of Bristol BioMed Image Archive)]]
-* Occasionally hepatoid carcinomas (malignant) arise in  affected males
-** Outwith hormonal control.
-* Hepatoid gland tumours occur rarely in bitches.
-** Are commonly malignant.
-* Hepatoid glands are also found at the tail head, prepuce and occasionally other skin sites.
-** Hepatoid tumours can also arise in these areas.
 ===Adenocarcinomas of the Glands of the Anal Sac (Apocrine Glands)===