Prognosis of pituitary adenomas with arteriographic abnormal vascularization.

نویسندگان

  • D A Roth
  • E J Ferris
  • U Tomiyasu
چکیده

A case report and five additional cases from the literature of angiographically demonstrated abnormal vascularization of chromophobe adenomas are presented. The appearance is that of a fine network of vessels appearing in the arterial phase and a homogeneous blush beginning in the capillary phase and lasting throughout the venous phase. The network is derived from dilated branches of the extradural internal carotid artery and is seen in the arterial phase. The stain, appearing in the venous phase, is due to filling of tiny sinusoidal channels and thin-walled vessels throughout the stroma. All the patients had large, actively growing tumours which compressed and infiltrated surrounding structures. Complete tumour removal was not possible in the patients operated upon. The combined morbidity-mortality rate was 83% and was due to the large tumour size, adherence to vital centres, extreme vascularity during surgical removal, and propensity to bleed spontaneously. The appearance of abnormal vascularity in a pituitary adenoma suggests a poor prognosis.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Pituitary tumor apoplexy.

Pituitary tumor apoplexy is a medical emergency due to acute infarction or hemorrhage in the pituitary gland. In this review, the authors discuss the sellar anatomy, the pituitary gland and adenomas' vascularization and the general aspects of the syndrome such as its ethiopatogenesis, predisposing factors, clinical features, treatment and prognosis.

متن کامل

Management of Pituitary Adenomas: Mononostril Endoscopic Transsphenoidal Surgery

Introduction: The endoscopic transsphenoidal approach for pituitary adenomas and other sellar lesions is quickly becoming the procedure of choice in their surgical management. The most common approach is binostril three-hand technique which requires a large exposure and subjects both nasal cavities to potential trauma. To reduce nasal morbidity, we employ a mononostril two-hand technique with t...

متن کامل

Endoscopic Endonasal Transsphenoidal Approach for Pituitary Adenomas: a Prospective Review of Our Early Experience

Background & Aim: Pituitary adenomas are a part of a dissimilar group of benign neoplasms. The development of endoscopic techniques for surgery of paranasal sinuses has increased the opportunity for an endoscopic approach with regard to the pituitary gland. Minimally invasive endoscopic pituitary surgery, in turn, permits a more thorough tumor resection and fewer associated surgical complicatio...

متن کامل

Microscopic Transsphenoidal Surgery for Pituitary Adenomas in Children and Adolescents

Background & Aim: We described the presentation, management and subsequent treatment outcomes of children and adolescents diagnosed with a pituitary adenoma in a joint neuroendocrine setting followed up by a single service as well as assessing long-term outcomes in terms of endocrine status and neurology symptoms. Methods & Materials/Patients: A total of 21 participants with histologically v...

متن کامل

بررسی ایمونوهیستوشیمی آدنوم‌های هیپوفیز و مقایسه آن با تظاهرات بالینی در 102 نمونه بلوک پارافینی

Routine classification of pituitary adenomas is not appropriate for diagnosis of adenoma type and in some cases there is inconcordance between clinical presentation and histological type of adenoma. The aim of this study was to determine the type of adenoma secretion based on immunohistochemical staining. 102 paraffin blocked specimens of pituitary adenoma were stained with hormone ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Journal of neurology, neurosurgery, and psychiatry

دوره 34 5  شماره 

صفحات  -

تاریخ انتشار 1971