A case of a pituitary adenoma associated with hyperprolactinemia and contiguous to a supra and retrosellar cyst is presented. Only three patients with pituitary adenomas accompanied by parasellar cysts have been previously described. It is the first time that this relationship is illustrated by Magnetic Resonance Imaging (MRI). Simultaneous occurrence of arachnoid cysts and adenomas is generall...

Giant pituitary adenomas are uncommonly large tumors, greater than 4 cm in size that can produces endocrine symptoms, visual loss and cranial nerve palsies. We report the rare occurrence of seesaw nystagmus as the presenting sign of giant pituitary adenoma. A 50-year-old man presented with headache associated with visual loss and seesaw nystagmus. Perimetry revealed bitemporal hemianopia and ma...

Pituitary apoplexy followed by cerebral infarction is rare. In this report, we present a 42-year-old man who had been diagnosed of pituitary adenoma presented with a sudden onset of unconsciousness, left hemiplegia and right ptosis. Investigations revealed the development of pituitary apoplexy. The extension of tumor mass compressed the supraclinoid portion of the right internal carotid artery,...

A patient with undiagnosed pituitary insufficiency who also had a toxic thyroid adenoma is presented. The T3 secreted by the adenoma apparently corrected the secondary thyroid failure, but also aggravated the secondary adrenal failure and almost precipitated adrenal crisis. The diagnostic work-up in such an unusual co-existence is discussed, in particular since the clinical diagnosis of pituita...

Hydrocephalus complicated the clinical course of four patients with pituitary adenoma. In three it was noted late, long after surgical intervention and radiotherapy had been carried out. In one patient, hydrocephalus was part of the presenting syndrome. The differential diagnosis of hypopituitarism and occult hydrocephalus is difficult. The possibility of hydrocephalus complicating a pituitary ...

Sixty eight women referred for treatment of hyperprolactinaemia entered a three year follow up study to determine the clinical and endocrine course of the disease and its association with microadenoma of the pituitary. Details recorded before treatment included medical history, gonadotrophin and ovarian hormonal concentrations, and release of prolactin in response to protirelin (thyrotrophin re...

Oxidative stress is extensively associated with tumorigenesis. A series of studies on stable tyrosine nitration as a marker of oxidative damage were performed in human pituitary and adenoma. This paper reviews published research on the mass spectrometry characteristics of nitropeptides and nitroproteomics of pituitary controls and adenomas. The methodology used for nitroproteomics, the current ...

Introduction: Clinically non-functioning pituitary adenomas (NFPA) are a heterogeneous set of complex adenomas with a wide variety of immunohistochemical subtypes such as silent gonadotrope, null cell adenoma, silent corticotrope adenoma, and other silent tumors of somatotrope, thyrotrope, and lactotrope lineages. The diagnosis is established by hypothalamus-pituitary MRI, which gives the volum...

Although chordomas are midline tumors, primarily intrasellar chordomas are extremely rare. In this report, the authors describe the case of a 68-year-old female with partial abducens nerve palsy in the right eye due to the intrasellar cystic tumor. After endonasal trans-sphenoidal surgery, intraoperative and histopathological findings confirmed the co-occurrence of an entirely intrasellar chord...

BACKGROUND AND PURPOSE MR imaging findings of LYH and pituitary adenomas are similar, but the therapeutic strategies are completely different. The purpose of this study was to evaluate sellar and parasellar MR imaging findings in patients with both diseases, as well as characteristic clinical findings. MATERIALS AND METHODS Clinical findings, including endocrinologic study and MR images of 20...