Surgery for pituitary
macroadenomas in dogs and cats has been pioneered by Björn P. Meij, DVM, PhD, Dipl ECVS of the University of Utrecht in the Netherlands.
Symptoms of
nonfunctional macroadenomas in dogs and cats include the following: Behavior changes, Listlessness, Loss of appetite, Walking in circles, Disorientation, Seizures and Head pressing.
While many pituitary - dependant cases of canine Cushing's syndrome are caused by microadenomas, approximately 15 to 50 percent of pituitary - dependant cases are caused by
functional macroadenomas.
The majority of these tumors are microscopic in size, however there are cases where larger tumors (known
as macroadenoma) can sometimes get big enough to put pressure on the brain and cause seizures.
Symptoms of ACTH - secreting
pituitary macroadenomas in your pet include the following: Increased thirst, increased urination, increased appetite, Muscle wasting, Skin problems, Panting, Poor hair coat and Sagging belly.
The reported outcomes have been favorable for most patients with pituitary
macroadenomas and meningioma patients showing minimal neurologic symptoms at presentation.
In cats, symptoms of
macroadenomas that secrete growth hormone include the following: Increased thirst, Increased urination, Increased appetite, Increase in lean body mass, Enlargement of the paws, chin and head and Diabetes mellitus that can not be controlled with insulin.
Pituitary
macroadenomas are large non-cancerous tumors of the pituitary gland.
The most common method of dealing with pituitary
macroadenomas is medical management.
The majority of pituitary
macroadenomas are functional.
Currently, the best potential cure for pituitary
macroadenomas is surgical removal.