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Friday, May 15, 2020 | History

4 edition of Pineal and midbrain lesions found in the catalog.

Pineal and midbrain lesions

by Gerhard Pendl

  • 396 Want to read
  • 34 Currently reading

Published by Springer-Verlag in Wien, New York .
Written in English

    Subjects:
  • Pineal gland -- Tumors -- Surgery.,
  • Mesencephalon -- Tumors -- Surgery.,
  • Brain Neoplasms.,
  • Mesencephalon.,
  • Pineal Body.

  • Edition Notes

    StatementGerhard Pendl.
    Classifications
    LC ClassificationsRD663 .P37 1985
    The Physical Object
    Paginationxi, 269 p. :
    Number of Pages269
    ID Numbers
    Open LibraryOL2532047M
    ISBN 100387818588
    LC Control Number85012701

      TIMELINE ON PINEAL GLAND First brain dissection and to describe pineal gland Descartes V. Horsley Seat of the human soul Pioneered intratentorial supracerebellar approach Dandy Krause First attempted resection Herophilus B.C Van Wagenen Trancortical transventricular approach Studnicka Glandular function. Benign pineal tumor. 2 Comments. by Mia Benson over a year ago. The pineal gland is located deep within the brain. About 1% of all brain tumors arise in the pineal gland. There are about seventeen types of tumor that can occur in this area, many of which are discovered to be benign. The most common of these types of tumor are gliomas, germ Author: Mia Benson.

    The tegmentum of the midbrain extends from the base of the tectum to, but does not include, the substantia nigra. The anterolateral portion of the midbrain on either side is formed by the basis pedunculi, which consists of the substantia nigra and the crus cerebri. In turn, the crus cerebri is composed primarily of descending fibers. Pineal Gland & Melatonin Named because it resembles a pinecone, the pineal gland is the size of a little finger nail. In spite of its mid-brain location, the gland is not part of the brain and resides outside of the blood-brain barrier.

    Pineal region tumors are very uncommon, accounting for 1% of adult brain the best of our knowledge, among the multiple lesions in the differential diagnosis, endodermal cyst has not been reported only within the pineal region.[7 8 10] In this paper, we intend to describe the first case of a pineal region endodermal cyst in addition to its clinical and surgical management. Lesions in the pineal region are topographically located in the centre of the brain in the diencephalic-epithalamic region. An area where the brain is bounded ventrally by the quadrigeminal plate, midbrain tectum, and in-between the left and right superior colliculi, dorsally by the splenium of the corpus callosum, caudally by the cerebellar vermis and rostrally by the .


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Pineal and midbrain lesions by Gerhard Pendl Download PDF EPUB FB2

Pineal and midbrain lesions. Wien ; New York: Springer-Verlag, © (OCoLC) Online version: Pendl, Gerhard, Pineal and midbrain lesions. Wien ; New York: Springer-Verlag, © (OCoLC) Document Type: Book: All Authors /. Masses in the pineal region have a relatively broad differential because of the variety of cell types found in the region.

If large enough, the mass may compress the tectal plate and may cause a defect in up-gaze (Parinaud syndrome) or obstructive hydrocephalus, if the cerebral aqueduct is compressed. Intrinsic pineal tissue masses also tend to cause upward displacement of the.

Fig. Pineal germinoma. (A) Axial FLAIR MRI shows high-signal round mass (arrow) in pineal region.(B) Image at midbrain level shows high signal in the dorsal midbrain (arrow), indicating infiltration or showed germinoma.

Axial FLAIR MRI 1 year after systemic chemotherapy and whole brain radiation shows that pineal region tumor has vanished (C. Personal experience with surgical exploration and total resection or evacuation of pineal and midbrain mass lesions in 20 pediatric patients from a total material of 52 cases demonstrate the efficacy of modern microsurgical techniques.

Microtopography indicated the choice of the most suitable approach to these deep-seated by: 8. Pineal lipomas are rare lesions, which represent 10 % of intracranial lipomas, account for % of intracranial operated lesions and % of patients in an autopsy and neuroradiological series [30, 31].

They are benign mesenchymal tumours, which arise from the abnormal differentiation of the meninx by: The surgical removal of lesions in the pineal region was and still is considered to be both dangerous and tedious. Even more so are intrinsic lesions Author: G. Pendl. 4 Approaches to Thalamic, Pineal, and Brainstem Lesions Figure Anterior skull base approaches.

(a) The various anterior and anterolateral skull base approaches that can be used to access lesions in the Pineal and midbrain lesions book. These approaches constitute a continuum, and they include unilateral and bilateral subfrontal, eyebrow/supraorbital or orbitopterional, pterional.

Parinaud's Syndrome. Parinaud syndrome is an upward gaze palsy that can also be seen in any patient as a result of pressure on the upward gaze eye center in the region of the suprapineal recess and quadrigeminal plate due to hydrocephalus or a pineal region mass lesion.

From: Principles of Neurological Surgery (Fourth Edition), Related terms. Glioma in the pineal region can develop from a small population of astrocytes within the pineal gland or from glial cells in the median-posterior aspect of the thalamus or midbrain [1.

Lesions of the pineal region include a diverse group of entities. Although they do not have pathognomonic imaging findings, imaging in combination with laboratory evaluations sometimes helps narrow the differential diagnosis.

In order to interpret and understand the pineal lesions, it is important to highlight the normal anatomy of the pineal. Pineal gland is very close to the pretectum - eye symptoms are common.

The pretectum: Includes the ocular motor centre and pupillary control centre; Between the thalamus and the midbrain; Responsible for mediating vertical eye movements. Problems with the visual pathways in pineal tumors: Accommodation deficiency.

BRAIN STEM LESIONS A59 (7) Išskiriami trys pagrindiniai sindromai: DORSAL midbrain (s. midbrain pretectal, collicular, Parinaud) syndrome – lesion of pretectal area, superior colliculi (e.g. compression from above by pineal mass; PCA infarct) → supranuclear paralysis of conjugate upward gaze → downward eye deviation (rarely, if unilateral → skewFile Size: 1MB.

Pineal tumors arise in the region of the pineal gland. This gland is a small structure deep within the brain. These tumors represent about 1% of all brain tumors but account for 3% to 8% of the intracranial tumors that occur in children.

At least 17 different types of tumors may occur in this region, and many are benign. Pineal cyst resection in the absence of ventriculomegaly or Parinaud’s syndrome: Clinical outcomes and implications for patient selection.

J Neurosurg. Kreth FW, Schätz CR, Pagenstecher A, Faist M, Volk B, Ostertag CB. Stereotactic management of lesions of the pineal region. Neurosurgery. The pineal gland hangs on the brain behind its very center.

French 18th-century scientist Rene Descartes thought that the pineal gland was the core of the soul, Author: Juliette Siegfried. PINEAL GLAND, Physically. Physically, the pineal gland is a cone-shaped gland located in the midbrain behind the thalamus and hangs from the roof of the back of the 3rd ventricle of the brain.

Ventricles are the spaces in the brain containing cerebral spinal fluid. The pineal gland is connected to the thalamus, hypothalamus, basil nuclei and.

Anatomy. The pineal region is defined as the area of the brain bordered superiorly by the splenium of the corpus callosum and the tela choroidea, inferiorly by the quadrigeminal plate and midbrain tectum, anteriorly by the posterior parts of the third ventricle, and posteriorly by the cerebellar vermis as can be nicely shown in a midline sagittal section through the pineal gland.

Radiological imaging of intracranial cystic lesions 1. Vishal Sankpal 2. Non-neoplastic Non-infectious Neoplastic Intracranial cystic lesions Infectious Associated with congenital malformations •Dermoid cyst •Epidermoid cyst •Arachnoid cyst •Colloid cyst •Neuroectodermal cyst •Neuroglial cyst •Ependymal cyst •Porencephalic cyst •Choroid plexus.

Pineal Gland and Your Third Eye was written from the standpoint of a doctor of psychology and a long time researcher of the human mind. Although science based, the information provided is very easy to understand and includes an extensive reference section in the back of the book/5.

The need to distinguish this benign lesion from other mass lesions of the pineal region, in particular from pinealocytoma, is stressed. Full text Get a printable copy (PDF file) of the complete article (M), or click on a page image below to browse page by by:.

lesions (arrows) consistent with demyelinating disease. D, Axial section through the upper midbrain (redrawn after Pernkopf Medial lemniscus ~otor nucleus (14)).

Note the relationship of posterior commissure, the cerebral Medial longitudinal faslculus Posterior commlsure Pineal gland D longitudinal fasciculus posteromedially to crossCited by: 8.Pineal Region Tumors Tadanori Tomita Pineal Gland The normal pineal gland measures only 5 to 10 mm.

It is histologically composed of pinealocytes (95%) and glial cells (5%). Pinealocytes are a specialized form of neuronal cells and function as neuroendocrine transducers. In lower mammals, these cells exhibit structural characteristics of photoreceptor cells.The pineal gland lies roughly just above and behind the midbrain, which is located just above the pons, the uppermost part of the hindbrain.