Microadenoma pituitary - Causes, Symptoms , Treatment


1. reasons microadenoma pituitary

2. symptoms of pituitary microadenomas

3. Diagnostics

4. Treatment

5. forecast

The pituitary gland is a major endocrine gland of the body that allocates more than seven major regulatory hormone.During normal operation the body hormones are distinguished in an amount sufficient to maintain normal functioning of the internal organs and systems.

Pituitary adenoma - a benign tumor, which is a kind of accumulation of pituitary cells, which arose as a result of uncontrolled growth of these cells.Microadenoma pituitary gland - a benign tumor, the size of which does not exceed 10 millimeters.Macroadenoma - benign, the size of which varies from 10 to 30 millimeters.The diameter of the giant adenoma is more than 30 millimeters.

Depending on the hormonal functions differ hormonally inactive and hormonally active pituitary microadenomas.

reasons microadenoma pituitary

Today is not fully clarified the reasons microadenoma pituitary, but ther

e are a number of factors suggesting that may provoke the development of disease.Thus, among the main causes can be identified pituitary microadenomas skull and brain injuries, infectious processes of the nervous system, as well as various kinds of adverse effects on the child during pregnancy.

Recently, the causes of pituitary microadenomas began to attribute the use of oral contraceptive pills.

Symptoms microadenoma pituitary adenoma

Intensity depends primarily on the hormonal function of the tumor.If hormonally active form manifested symptoms such microadenoma pituitary how specific hormonal disorders.Impaired vision (visual field and decreased visual acuity) - the most common symptom microadenoma pituitary, which manifests itself, usually with hormonal-inactive form.Also frequently observed in patients with headaches.

sharp headache and visual field, and the fall of visual acuity are rare symptoms of pituitary adenomas larger.In the case involving the hypothalamus in the process - a special part of the brain, the patient may experience this symptom microadenoma pituitary as impaired consciousness.


When microadenoma pituitary conducted a thorough ophthalmologic and hormonal examination and neuroimaging.

Among the most common diagnostic methods to establish the presence microadenoma size of less than 5 mm, can be identified MRIs.Nevertheless, in 25-45% of patients in this case to visualize adenoma and fails.In case of failure of the magnetic resonance imaging is carried out computer tomography.It should be noted that this type of survey is used only in emergencies.Treatment

pituitary microadenomas Treatment was based on a drug therapy, which in turn includes analogs of somatostatin, dopamine agonists, serotonin antagonists and inhibitors of cortisol production.

microadenoma Surgical treatment of pituitary suggests options for transcranial (adenomas with suprasellar large) and transsphenoidal (the most common today) removal of the tumor.

Radiation therapy is usually as adjunctive procedure in the treatment of pituitary microadenomas.

should also be noted that each type of tumor requires a specific, most appropriate and effective treatment.

Treatment microadenoma pituitary must necessarily take place under the supervision of an endocrinologist, and a neurosurgeon.

When prolaktinome depending on the degree of concentration of prolactin drug therapy may be used, or surgery.If the tumor does not respond to the therapy, surgery, which is performed after drug therapy can be applied.

When somatotropinomy elderly patients used medication.In other cases, a usually surgery.Continued drug therapy is shown when after operation is a high concentration of growth hormone or tumor relapse.

When kortikotropinomy microadenoma removed by surgery.In 85% of patients are cured.Drug or radiation therapy in this case is carried out in the presence of contraindications to surgery.


prognosis of pituitary microadenoma depends on the hormonal function of the tumor, as well as its size (the possibility of its removal).

In 20-25% of cases there is a "hormonal" recovery from somatotropinomy and prolactinoma.When mikrokortikotropinomah recovery noted in 85% of cases.

the presence of pituitary macroadenoma more than 2 cm in diameter, the complete removal of the tumor is considered to be impossible.Thus, for five years from the date of the operation may re-development of the disease.


This article is available exclusively in the educational purposes and is not research material or professional medical advice.

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