نتایج جستجو برای: pituitary adenoma
تعداد نتایج: 61707 فیلتر نتایج به سال:
Introduction: Rathke cleft cysts (RCC’s) are cystic sellar and supra sellar benign lesions which are thought to originate from the remnants of Rathke’s pouch. There are no specific clinical or radiological signs to differentiate them from other pituitary lesions. Presentation of Case: We report a 25-year-old female presented with hyperandrogenism and menstrual disorder, with the preliminary ...
BACKGROUND A functional pituitary adenoma can produce multiple anterior-pituitary hormones, such as growth hormone (GH) -producing adenomas (GHoma) with prolactin or thyrotropin stimulating hormone production in the same lineage. However, it is very rare that acromegaly shows subclinical Cushing's disease (SCD) beyond the lineage. Here we describe the involvement of intratumoral coexistence wit...
INTRODUCTION To the best of our knowledge, the presence of a trilobed nonfunctional giant pituitary adenoma has never been described before in the literature. These tumors present unique diagnostic and therapeutic challenges. Tumors of this etiology can be managed with pharmacologic treatment or aggressive surgical intervention. The following case illustrates an unique visual presentation of a ...
AIM The authors review their experience in the endoscopic endonasal transsphenoidal treatment of 5 patients, finally diagnosed as primary hypophysitis but initially assumed to be pituitary adenomas. MATERIAL AND METHODS A retrospective study was undertaken to review 5 cases of primary non-necrotizing granulomatous hypophysitis (1.61%) through 310 endoscopic transsphenoidally operated cases wi...
Thyroid stimulating hormone (TSH) secreting pituitary adenomas are rare tumors manifested as hyperthyroidism with goiter in the presence of elevated TSH. We present a case with pituitary adenoma secreting both TSH and growth hormone (GH) with the prominent clinical findings of hyperthyroidism but without clinical findings of acromegaly. Pituitary magnetic resonance imaging revealed a macroadeno...
PURPOSE Hypothalamic or locally produced growth factors and cytokines control pituitary development, functioning, and cell division. We evaluated the expression of the chemokine stromal cell-derived factor 1 (SDF1) and its receptor CXCR4 in human pituitary adenomas and normal pituitary tissues and their role in cell proliferation. EXPERIMENTAL DESIGN The expression of SDF1 and CXCR4 in 65 hum...
OBJECTIVE Hypoglycemia induces rapid secretion of counterregulatory hormones such as catecholamine, glucagon, cortisol, and GH. Insulin-induced hypoglycemia is used for evaluating GH-IGF-I and ACTH-adrenal axes in patients with pituitary disorders. The aim of this study was to determine whether the response of catecholamine secretion to hypoglycemia is disrupted in patients with pituitary adeno...
PURPOSE To investigate treatment outcome and long term complication after surgery and radiotherapy (RT) for pituitary adenoma. MATERIALS AND METHODS From 1990 to 2009, 73 patients with surgery and RT for pituitary adenoma were analyzed in this study. Median age was 51 years (range, 25 to 71 years). Median tumor size was 3 cm (range, 1 to 5 cm) with suprasellar (n = 21), cavernous sinus extens...
A novel sub-suptum mucusa approach was used to investigate the surgical method via an endonasal sub-septum-mucosa approach to pituitary adenoma under endoscopy. In this work, we aim to ensure the quality of operation and to reduce the operation trauma and complications. By endoscopy, the nasal mucosa was incised in the nasal septum, and all mucosal flaps were retained, a sub-septum-mucosa surgi...
Abstract Background: Hyponatremia is a common electrolyte abnormality, investigating the etiology can be challenging to clinician, especially when cause has rarely been associated with hyponatremia. Macroprolactinoma reported as of We are reporting case macroprolactinoma presenting Care Report: A 67 year old female previously healthy female, presented fall due syncopal episode. Patient lighthea...
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