Although apoplexy and cystic formation are common inside the pituitary adenoma and hemorrhage with different times of occurrence as revealed by magnetic resonance imaging sequences can be seen within a pituitary macroadenoma, a classic saccular aneurysm and its association with carotid artery haven’t been yet reported. Case: A 52 years old woman was referred for visual loss and headache accompa...

MicroRNAs (miRNAs) are small non-coding RNAs that control gene expression by targeting mRNA. It has been demonstrated that miRNA expression is altered in many human cancers, suggesting that they may play a role in human neoplasia. To determine whether miRNA expression is altered in pituitary adenomas, we analyzed the entire miRNAome in 32 pituitary adenomas and in 6 normal pituitary samples by ...

Pituitary apoplexy occurs as a very rare complication following pituitary function tests. Signs and symptoms are due to the rapid expansion of an infarcted and/or haemorrhagic pituitary adenoma. We report a case of macroadenoma, in which pituitary apoplexy developed 30 minutes after administration of thyrotropin-releasing hormone (TRH) and gonadotropin-releasing hormone (GnRH) injections. Magne...

BACKGROUND AND PURPOSE High signal intensity (HSI) at the pituitary stalk is reported in pituitary adenomas. Our purpose was to clarify how and when this HSI formed, its long-term fate, and its relation to the function of infundibuloneurohypophyseal (INH) system. METHODS Twenty-two patients with pituitary adenoma and supradiaphragmatic extension underwent 1.5-T MR imaging. Patients were assig...

The pituitary gonadotropic adenoma is an developed́ in the cells of anterior pituitary. It can be secreting releasing excess blood and urine; products its secretion are gonadostimulines (F.S.H. L.H.) or non-secreting this case only histo- cytochemical analysis will able to allow identification. We report two cases macroadenoma with LH-FSH immunostaining. Pituitary magnetic resonance imaging reve...

In many centers , MR has become the imaging study of choice for evaluating diseases of the pituitary [1] . The diagnosis of pituitary adenoma is confirmed by showing a gland that is more than 1 0 mm in height with or without associated sellar deformity and deplacement of the pituitary stalk. We report a case of a hypothyroid patient with elevated levels of serum prolactin and a homogeneously en...