Prognostic Factors for Invasiveness and Recurrence of Pituitary Adenomas: A Series of 94 Patients.

(1) Background: The aim of the current study is to evaluate the immunohistochemical expression of Ki-67, CD-56, Cyclin-D1 and E-Cadherin in the tissues samples of pituitary adenomas (PAs) and its association with PAs clinical manifestation tumor size, invasiveness and the risk of recurrence. (2) Materials and Methods: Ninety-four patients who underwent endoscope transsphenoidal excision of PAs were included in our study. The immunohistochemical expression of the Cyclin-D1, CD-56, E-Cadherin and Ki-67 markers was analyzed in paraffin-embedded tissue samples.

MGMT immunohistochemistry in pituitary tumors: controversies with clinical implications.

Introduction: Temozolomide (TMZ) is currently considered as a rational therapeutic option for patients with progressively aggressive pituitary adenomas and carcinomas not responding to conventional therapies. Administration of TMZ results in clinical response and improvement in survival of many of these patients depending upon the expression of the DNA repair enzyme O-6 methylguanine DNA transferase (MGMT). Low or negative MGMT immunoreactivity predicts responsiveness to TMZ therapy.

Young adult patient with headache, fever and blurred vision.

Background And Importance: This case highlights the fact that acute pituitary apoplexy may be misdiagnosed due to being confused with other entities exhibiting similar symptoms, such as meningitis or subarachnoid hemorrhage.

Clinical Presentation: A patient in his late 30s presented with sudden and severe frontal headache, fever, blurred vision, nausea, confusion, as well as oculomotor palsy (CN III) with partial ptosis of the left eyelid, dilated left pupil and left eye globe deviation inferiorly and laterally. The final diagnosis was acute pituitary apoplexy complicating a pituitary macroadenoma.

High incidence of thyroid cancer among patients with acromegaly.

Purpose: Several studies have suggested that patients with acromegaly have an increased risk of thyroid, colorectal, breast and prostate cancers. In this study we determined the prevalence of malignant neoplasms in patients with acromegaly.

Methods: Cancer risk was evaluated in a cohort of 110 patients (M/F 48/62, age 58.

Pituitary abscess: a case report and review of the literature.

Unlabelled: Pituitary abscess is a rare life-threating entity that is usually misdiagnosed as a pituitary tumor with a definite diagnosis only made postoperatively. Over the last several decades, advances in healthcare have led to a significant decrease in morbidity and mortality due to pituitary abscess. We report a case of a 34-year-old woman who was admitted to our department for investigation of a pituitary mass and with symptoms of pituitary dysfunction, headaches and impaired vision.

De novo intracranial collision tumour in previously evacuated intracerebral haematoma site.

The authors report the rare and first documented case of intracranial collision tumour occurrence in a previously evacuated intracerebral haematoma site. Surgery trauma could predispose to collision tumour occurrence. Research efforts should try to reveal the possible pathogenesis of this condition.

Aseptic meningitis after transsphenoidal management of Rathke's cleft cyst: case report and review of the literature.

Aseptic meningitis after transsphenoidal surgery (TSS) for treatment of Rathke's cleft cyst (RCC) is a rare complication caused by the leakage of the cyst contents within the subarachnoid space. We present a case of aseptic meningitis occurring after TSS for a RCC. During surgery, the cyst wall was subtotally removed, and intraoperative cerebrospinal fluid (CSF) leakage was observed.

Non-adenomatous sellar lesions: experience of a single centre and review of the literature.

Non-adenomatous sellar lesions represent a diagnostic and occasionally a therapeutic challenge. The purpose of the study was to provide an overview of the clinical and radiographic characteristics of non-adenomatous sellar lesions operated at our department, with emphasis on treatment options. In our transsphenoidal surgical series of 300 cases, 29 non-adenomatous sellar lesions (9.

Thyrotoxic periodic paralysis as the first manifestation of a thyrotropin-secreting pituitary adenoma.

Thyrotoxic Periodic Paralysis (TPP) is a rare manifestation of hyperthyroidism characterized by muscle weakness and hypokalemia. Thyroid-Stimulating Hormone (TSH)-secreting pituitary adenoma is a rare cause of hyperthyroidism. Even more rare is the occurrence of TPP as the first manifestation of a TSH-secreting pituitary adenoma.

Localisation of cervical spinal cord compression by TMS and MRI.

The authors set out to study the role of transcranial magnetic stimulation (TMS) in the pre-surgical assessment of patients with cervical spondylotic myelopathy. Central motor conduction time (CMCT) was calculated in 50 patients and 50 controls by recording muscle evoked potentials from upper limb muscles. The level of spinal cord compression was determined according to the pattern of CMCT prolongation and compared with the level disclosed by MRI.

Collision sellar lesions: experience with eight cases and review of the literature.

The concomitant presence of a pituitary adenoma with a second sellar lesion in patients operated upon for pituitary adenoma is an uncommon entity. Although rare, quite a great variety of lesions have been indentified coexisting with pituitary adenomas. In fact, most combinations have been described before, but an overview with information on the frequency of combined pathologies in a large series has not been published.

Intra-sellar schwannoma co-existing with GH-secreting pituitary adenoma.

Background: We present a unique example of an intra-sellar schwannoma co-existing with a growth hormone (GH)-secreting pituitary adenoma.

Method And Findings: The patient presented with acromegaly and magnetic resonance imaging (MRI) revealed an intra-sellar mass. The tumour was totally resected via a sub-labial trans-sphenoidal approach.

CSF neurotransmitter metabolites and neuropsychiatric symptomatology in patients with normal pressure hydrocephalus.

Patients with normal pressure hydrocephalus (NPH) may exhibit certain neuropsychiatric symptomatology, possibly related to alterations in central neurotransmitter activity. The aim of this study was to relate psychiatric distress, as expressed by the scores in the SCL-90 subscales, to CSF levels of the main metabolites of noradrenaline (MHPG), serotonin (5-HIAA), and dopamine (HVA) in NPH patients. The metabolite levels were estimated in CSF samples taken during the tap test in 19 patients with probable NPH, and compared to 19 sex- and age-matched controls.