Pituitary adenomas are tumors that occur in the pituitary gland. Pituitary adenomas are generally divided into three categories dependent upon their biological. Adenoma de hipófise ou de pituitária é um tumor não-maligno que ocorre na hipófise. Os adenomas de hipófise são, geralmente, divididos em três categorias, . Se describe el caso de un adenoma hipofisiario en una paciente de 17 años, quien acude a consulta por presentar acné resistente a tratamientos anteriores.

Author: Yozshuktilar Grogor
Country: Belize
Language: English (Spanish)
Genre: Software
Published (Last): 14 April 2015
Pages: 14
PDF File Size: 4.67 Mb
ePub File Size: 20.79 Mb
ISBN: 340-6-94425-871-8
Downloads: 56405
Price: Free* [*Free Regsitration Required]
Uploader: Kiganris

Hypofunction Diabetes mellitus types: These mutations result in an increased cAMP production and in the subsequent overactivation microadenona specific pathways involved in both cell growth and specific programmes of cell differentiation.

Ectopic pituitary adenomas are extremely rare. The availability of medical treatment dopamine, DA, agonists, somatostatin analogs, GH-receptor antagonists The neoplasms most frequently seen in the nasal cavity are epithelial papillomas, angiomas, transitional cells carcinoma, pavement microadenomw and adenocarcinoma.

Parathyroid neoplasm Adenoma Carcinoma.

They are often located in the nasopharyngeal region associated with the pharyngeal pituitary. An year-old woman presented with the complaint of a small painful mass in the right axilla. At variance with hyperfunctioning thyroid adenomasno mutation of the TShR or Gs alpha genes was detected in nonfunctioning thyroid nodules. A series of about pituitary adenomas seen over a period of 20 years were screened for modification in hormonal secretion. For a general discussion, including epidemiology, treatment and prognosis, please refer to the article on pituitary adenomas.


Most Popular Articles According to Endocrinologists. Genetic screening for aryl-hydrocarbon interacting protein gene mutations is warranted in selected high-risk patients who may benefit from early recognition and follow-up. The maximum diameters of the cut surfaces were measured.

Unable to process the form. These results show that some human pituitary adenomas may contain light bodies identical to those seen in gonadotrophs of rat pituitary The article presents two clinical cases of thyroid-stimulating hormone TSH-secreting pituitary adenomas in patients with different disease duration, and thus the presence of hyperthyroidism complications.

Ultrasound examination makes it possible microadenomw determine the shape, size, exact location of the node and its internal structure but gives no opportunity to udge its functional activity. At operation, the adenoma was found to be an intrathyroid and therefore a thyroid lobectomy was performed. The authors concluded that colonoscopy is the preferred miccroadenoma strategy and that improved access to colonoscopy is an important goal for occult blood screening programs.

In 42 cases the adenoma was only intrasellar, which was confirmed by contrast Hipofiaiario investigations, CT scanning, angiography and ophthalmological investigation. The differential diagnosis includes pituitary tuberculoma, especially in developing countries and in immumocompromised patients.

Pituitary adenoma

After 44 years, tubulovillous adenomas were found and resected at the ileovesical anastomosis site. The lesion was managed hipofisairio under local anesthesia, and 2 months follow-up was uneventful.


Lipomatous transformation of tumor cells in the CNS has been previously observed but, to the best of our knowledge, our case is the first pituitary adenoma with such change. The pleomorphic adenoma belongs to the group of tumours less commonly observed in the nasal cavity, and is the most common head and neck benign glandular tumour.

Ophthalmo – logic examination and neurological examination yielded normal findings. Six patients with continuing growth of the tumor underwent a second operation 1. Full Text Available Microcystic adenoma of the pancreas is a rare benign tumour of the pancreas without malignant potential which usually appears in older women. hipofisiaeio

Pituitary Microadenomas: Practice Essentials, Pathophysiology, Epidemiology

Although pituitary tumors arise as benign monoclonal neoplasms, genetic alterations have not readily been identified in these adenomas. If clinical suspicion of Cushing syndrome, acromegaly, or other hormone excess exists, order appropriate tests.

Regular follow-up in the mean 6. Functioning and nonfunctioning thyroid adenomas involve different molecular pathogenetic mechanisms. Non- adenomas have conserved an ascending curve with the same delay. We also recorded relevant histopathological, demographic, clinical follow-up and survival data.

Mar 23, Author: