A large dose of dexamethasone will suppress the pituitary's ACTH production despite the existence
of a pituitary tumor; however, adrenal tumors will continue to pump out cortisol since they are not ACTH dependent.
Your veterinarian may suspect the presence
of a pituitary tumor based on your pet's clinical signs.
Growth
of the pituitary tumor would give the patient a less favorable prognosis.
The likelihood
of a pituitary tumor increases with age, although it is not that common.
In cases
of pituitary tumors causing hyperadrenocorticism that are medically managed, the treatment needs monitoring and life expectancy is variable from days to ten years but averaging less than three years.
The growth rates
of pituitary tumors in dogs and cats vary greatly, and the rate at which symptoms progress depends on tumor type.
Not exact matches
Example: When the Doctors told me I had
tumors on my
pituitary gland and it looked bad because
of the test they had taken, I wasn't particularly happy about the news, but I can tell you this; the moment I was told that, I was swept over my being by a peace that I can not explain.
Two medicines, bromocriptine and cabergoline, can treat
pituitary tumors by reducing the amount
of prolactin in your system.
A
pituitary tumor could also induce milk production: «It would be the same reason — increased prolactin levels & mdashin the one case drug - induced, in the other due to a
tumor or some other sort
of neurological problem.»
Staff
of this Program: Amanda M. Laird, MD, FACS, Chief, Section
of Endocrine Surgery H. Richard Alexander, Jr., MD, Chief Surgical Officer Rebecca Burke, MD, Palliative Care Specialist Simon M. Hanft, MD, Director, Minimally Invasive Brain
Tumor Surgery and Surgical Director,
Pituitary Tumor Program Salma Jabbour, MD, Radiation Oncologist Timothy Kennedy, MD, FACS, Surgical Oncologist Sung Kim, MD, Radiation Oncologist Steven K. Libutti, MD, FACS, Director, Rutgers Cancer Institute and Surgical Oncologist Usha Malhotra, MD,, Medical Oncologist Stanley Trooskin, MD, FACS, Chief
of General Surgery and Endocrine Surgeon Hetal Vig, MS, CGC, Genetic Counselor Elina Dykhne, APN, Advanced Practice Nurse Aleza Rubin, APN, Advanced Practice Nurse
Mice have a high incidence
of Hodgkin's - like reticulum cell neoplasm at 18 months
of age and
pituitary tumors in old multiparous females.
[32]
Pituitary - type GHRH - R and splice variant 1
of GHRH - R appear to mediate the direct effects
of GHRH and its analogs on
tumors.
Almost all brain and
pituitary tumor patients undergo repeated MRI scans after treatment to observe for the possible recurrence
of their
tumors.
One
of my other important roles at the Cancer Institute is as part
of the
pituitary surgery program, as I have extensive training in minimally invasive, endoscopic approaches to
tumors of the
pituitary region.
Wight's phenomenal size is caused by a
tumor formed on his
pituitary gland that caused growth spurts from the age
of nine on.
Total Testosterone — indicator
of testosterone deficiency,
pituitary or hypothalamus disorders, infertility, testicular
tumors.
Pituitary tumors are a type
of brain
tumor that can often mimic the function
of this gland, producing extra hormones that your body doesn't need (and throwing your other hormones into disarray).
ACTH levels can be measured to see if a secreting
pituitary tumor is involved, but this usually follows the diagnosis
of Cushing's.
Sometimes
tumors on the
pituitary or adrenal glands can contribute to a condition known as Cushing syndrome, which is characterized by high levels
of cortisol in the blood.
Now, what about low HGH and
pituitary tumors — is this the cause
of a deficiency?
Primary testicular failure Klinefelter syndrome Cryptorchidism Orchitis Trauma HIV / AIDS Myotonic muscular deficiency Retroperitoneal fibrosis Aging Hypogonadotropic hypogonadism Kallman syndrome Prader - Willi syndrome Idiopathic hypopituitarism
Pituitary tumors Suprasellar tumors Hemochromatosis Inflammatory, traumatic, vascular lesions of pituitary and hypothalamus Obesity Severe chronic illnesses Medication A
Pituitary tumors Suprasellar
tumors Hemochromatosis Inflammatory, traumatic, vascular lesions
of pituitary and hypothalamus Obesity Severe chronic illnesses Medication A
pituitary and hypothalamus Obesity Severe chronic illnesses Medication Andropause
Doctor ordered a MRI scan
of my
pituitary and got to know that i have a 0.4 cm benign
tumor in my
pituitary gland.
Pituitary disorders and
tumors can affect growth as well as most
of the major hormonal functions.
Santa Monica, CA About Blog The Pacific Neuroscience Institute located at the John Wayne Cancer Institute and Providence Saint John's Health Center specializes in the treatment and care
of patients with
pituitary, brain and skull base
tumors and other neurological disorders.
Santa Monica, CA About Blog The PNI blog covers wide spectrum
of neurological and cranial disorders including: brain
tumors, skull base
tumors,
pituitary tumors, and more.
The most common cause
of Cushing's Disease (85 %
of all cases) is a
tumor of the
pituitary gland.
A secondary form
of Addison's disease can result from a
tumor or defect in the
pituitary gland, which is an important hormonal regulator located in the brain.
Pituitary gland
tumors account for fifteen percent
of cases
of Cushing» s disease while 85 % are caused by adrenal
tumors.
There are two causes
of Cushing» s: a
tumor on the adrenal gland or over stimulation
of the adrenal glands by the hormones that control them that are regulated by the
pituitary glands.
In the few cases
of secondary canine hypothyroidism, it is caused by traumas or
tumors in the
pituitary gland, prolonged use
of glucocorticoids and / or a lack
of iodine in the diet.
New radiation technologies and techniques have revolutionized treatment
of brain cancers (including
pituitary tumors that cause feline acromegaly), allowing for a non-invasive approach to treatment that has few, if any, short term side effects.
Treatment
of Cushing's disease in dogs depends on the type
of Cushing's disease, i.e. whether the
tumor is situated on the
pituitary gland or on one
of the adrenal glands.
Pituitary Dependent Cushing's is caused by a tumor (usually small and benign) of the pituitary gland in the brain overstimulating the adrena
Pituitary Dependent Cushing's is caused by a
tumor (usually small and benign)
of the
pituitary gland in the brain overstimulating the adrena
pituitary gland in the brain overstimulating the adrenal glands.
They're the result
of a
tumor located on the
pituitary gland that causes an increased production
of adrenocorticotropic hormone.
In an attempt to tell whether the
tumor is in the
pituitary or in the adrenal gland, the vet may attempt a high dose dexamethasone suppression test (about 80 %
of Cushing's dogs have the
tumor in their
pituitary gland).
There are three main causes for this syndrome: Uncontrolled secretion
of the hormone ACTH by the
pituitary gland; Functional adrenocortical
tumors; Glucocorticoid therapy.
In dogs, 80 to 85 percent
of cases
of Cushing's syndrome are caused by
pituitary tumors.
This condition, usually caused by a
tumor in the
pituitary gland, is far more common than we realize, but because
of the complex diagnostic testing required, it's underdiagnosed.
Surgical removal
of pituitary gland
tumors is difficult and rarely attempted.
The actual defect in most cases is a benign
pituitary (brain)
tumor that secretes excessive amounts
of adrenal stimulating hormone (ACTH), sending the adrenals into high gear.
Tumors of the
pituitary exert pressure on the surrounding tissues.
Blood tests help to indicate the presence
of functional
tumors of the
pituitary and adrenal cortex.
The most common hormone produced by
pituitary tumors stimulates the adrenal cortex leading to clinical signs associated with overstimulation
of these glands (hyperadrenocorticism or Cushing's disease).
Some dogs with large
tumors of the
pituitary gland might initially respond to medical therapy for
pituitary dependent Cushing's.
Cushing's disease is caused by a
tumor of either the
pituitary or adrenal glands, causing the production
of excess cortisol.
A
tumor on the
pituitary gland at the base
of the brain (this gland is responsible for telling the adrenal glands to secrete cortisol).
This probably occurs because most cases
of Cushing's disease are caused by
pituitary gland
tumors in the brain.
When the
tumor is on the
pituitary gland, it causes bilateral adrenal enlargement, and the preferred surgical treatment is removal
of both adrenal glands.
«More than 90 percent
of dogs with Cushing's disease have a benign
pituitary gland
tumor,» explains Dr. Grognet, who also operates the ACE Academy for Canine Educators.
However, the most common cause
of Cushing's disease in dogs is a benign
tumor in the
pituitary gland.