Friday, May 4, 2012

Psychological Manifestations of Pituitary Disease

From the May 2012 PNA Newsletter:

 

Psychological Manifestations of Pituitary Disease

Editor’s note: This is an introduction to a lecture given by Dr. Michael Weitzner. It makes many of the points that the PNA strives to promote.

The objectives of this lecture are to provide an overview of the psychological and neuropsychiatric problems faced by patients with pituitary disease, the impact on family, and the options for treatment.

Cushing, himself, believed that there was a need to differentiate the psychological effects that resulted from the pituitary tumor from those that resulted from the stress of illness. It is now recognized that the hypothalamic-pituitary axis is not only an integral element in the expression of behavior, but also an essential part of the limbic system which controls our emotions.

Many patients with pituitary tumors develop an apathy syndrome which is the result of this interplay between the limbic system and the hypothalamic-pituitary axis. An important task is the differentiation of this apathy syndrome from other psychiatric disturbances which are also seen in patients with pituitary disease. It is well recognized that depression and anxiety are present in many patients with hyperprolactinemia and Cushing’s disease. Personality change and anxiety are commonly seen in patients with acromegaly and hypopituitarism. There are several options for treatment, both pharmacological and psychological. One element that is unfortunately ignored in this illness is the effect on the family. Effective treatment of the patient with pituitary disease included treatment of the family.

Michael A. Weitzner, M.D., Department of Psychiatry,University of South Florida, Tampa, Florida

From www.pituitary.org

1 comment:

Unknown said...

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The posterior lobe (the neural lobe or neurohypophysis) of the pituitary gland is not, despite its name, a true gland. The posterior lobe contains axons of neurons that extend from the hypothalamus to which it is connected via the pituitary stalk. The hormones vasopressin and oxytocin, produced by the neurons of the supraoptic and paraventricular nuclei of the hypothalamus, are stored in the posterior lobe and released from axon endings (dendrites) within the lobe.
Because the pituitary gland is responsible for the production of hormones key to proper body function, tumors often interfere with this production—either by limiting the amount of hormone produced or generating excessive amounts. Growth hormone (regulates body height and structure), prolactin (controls lactation, or milk production), sex hormones (control the menstrual cycle and other sexual functions), thyroid gland hormones (control the thyroid gland), adrenal gland hormones, and vasopressin (a hormone involved in water and electrolyte balance) are all examples of hormones that can be affected. Growing tumors can also push on surrounding structures, often resulting in headaches, behavioral changes, and vision problems.

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