Changes

Also know as: '''''Fibroadenomatous hyperplasia — Fibroepithelial hyperplasia'''''

Also know as: '''''Fibroadenomatous Hyperplasia — Fibroepithelial Hyperplasia'''''

==Introduction==

==Introduction==

Mammary hyperplasia is a disorder characterised by '''rapid and dramatic enlargement of multiple mammary glands''' in '''cats'''.

Mammary hyperplasia is a disorder characterised by '''rapid and dramatic enlargement of multiple mammary glands''' in '''cats'''.

It typically occurs in '''young, cycling females''' but is also occasionally seen in males and spayed females.

It typically occurs in '''young, cycling females''' but is also occasionally seen in males and spayed females. It has been related to the high levels of progesterone in pregnancy, but can also occur with exogenous progesterone administration. It is a benign condition, but must be differentiated from mammary neoplasia.

==Clinical Signs==

 

There is usually '''rapid onset of signs''', usually with enlargement of all the mammary glands and involvement of both epithelial and mesenchymal tissue. The swelling is generally '''not painful''', although secondary infection of the glands may occur. There may then be pain, erythema and ulceration of the glands.

 

==Clinical signs==

There is usually '''rapid onset of signs''', usually with enlargement of all the mammary glands and involvement of both epithelial and mesenchymal tissue.

 

The swelling is generally '''not painful''', although secondary infection of the glands may occur. There may then be pain, erythema and ulceration of the glands.

'''Milk production''' may occur even though most affected cats are not lactating.

'''Milk production''' may occur even though most affected cats are not lactating.

''Mastectomy'': if ulceration of the glands has occurred or if remission is taking time

''Mastectomy'': if ulceration of the glands has occurred or if remission is taking time

''Prolactin inhibitor'': it is not licenced in cats and has many side effects including vomiting and anorexia.

''Prolactin inhibitor'': it is not licensed in cats and has many side effects including vomiting and anorexia.

''Progesterone Receptor Antagonist'': can also be used although it is not licenced and may cause abortion in pregnant queens.

''Progesterone Receptor Antagonist'': can also be used although it is not licensed and may cause abortion in pregnant queens.

{{Learning

{{Learning

Arndt, J. '''Feline Mammary Hyperplasia''' ''UC Davis publication''

Arndt, J. '''Feline Mammary Hyperplasia''' ''UC Davis publication''

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[[Category:Dermatological Diseases - Cat]]

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