Neoplasm of mixed mesenchymal and neuroepithelial origin of the optic nerve.

نویسندگان

  • S Shuangshoti
  • R Panyathanya
چکیده

A case is reported of a 19-year-old male having right proptosis for 4 years because of a mixed meningioma and astrocytoma of the ipsilateral optic nerve. The sheath of this nerve is analogous to the leptomeninges, and neuroglial cells constitute the stroma of the nerve. Both meningioma and astrocytoma therefore can arise primarily in the optic nerve, and they may be combined in the same mass, forming a neoplasm of mixed mesenchymal and neuroepithelial origin.

برای دانلود 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

Neoplasm of mixed mesenchymal and neuroepithelial origin: liposarcomatous meningioma combined with gliomas.

A case is reported of an intracranial neoplasm of mixed mesenchymal and neuroepithelial (glial) origin occurring in the parieto-parasagittal region of the brain of a 19 year old man. A meningioma with liposarcomatous and psammomatous components comprised the mesenchymal part of the combined tumour. The neuroepithelial portion was composed of mixed ependymoma and astrocytoma. The combined neopla...

متن کامل

Three Dimensional Ultrasonography of the Eye and Measurement of Optical Nerve Sheet Diameter in Dog

Objective-  To determine the possibility of three-dimensional ultrasonography (3DUS) and measurement of optical nerve sheet by this method. Design- Descriptive study. Animals- 10 mixed normal dogs (5males, 5 females), age 1-1.5 year, and weighting 15±5 kg Procedure- 3D ultrasounds of the eyes were evaluated and the normal optical nerves in 3DUS images were measured using Volouson 730 pro....

متن کامل

Effect of scuba-diving on optic nerve and sheath diameters

  Background :There is not any data available about the effect of high bar pressure condition on intracranial pressure. In this study, the effect of diving on the optic nerve and sheath diameters as non-invasive markers of intracranial pressure has been investigated.   Methods : Twenty professional male divers from twenty one volunteers were chosen for this cross-sectional study. Only one perso...

متن کامل

Hypothalamic and pancreatic lesions with diabetes mellitus.

A case is reported of a neoplasm of mixed mesenchymal and neuroepithelial origin consisting of plasmacytoma, lymphoma, ganglioneuroma, and astrocytoma in the same mass. The tumour arose in the hypothalamus of a 43 year old diabetic woman who also had alpha cell hyperplasia and beta cell hypoplasia of the islets of Langerhans. It is suggested that both hypothalamic and pancreatic lesions produce...

متن کامل

Malignant medulloepithelioma of the optic nerve in a horse.

An 18-month-old Standardbred filly had a large intraocular tumor involving the optic nerve. The tumor was a malignant medulloepithelioma, a rare intraocular neoplasm derived from the primitive medullary epithelium. By light microscopy the tumor had cords and lobules of primitive neuroepithelial cells that formed clefts and true rosettes. Electron microscopy of the rosettes showed a girdle of zo...

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

برای دانلود 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

عنوان ژورنال:
  • The British journal of ophthalmology

دوره 61 6  شماره 

صفحات  -

تاریخ انتشار 1977