This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.
To the Editor.—
The paper by Drs. Pelc and Flament-Durand entitled "Histological Evidence of Optic Chiasma Glioma in the Diencephalic Syndrome" (Arch Neurol 28:139-140, 1973) seems erroneous in stating that it is "the first histological examination of the optic pathways and evidence of optic chiasma glioma to be reported in this syndrome." In the first paragraph of their paper, they state that five instances of gliomas involving the optic chiasm or nerves or both have been reported in the literature. There seems little doubt in reading these reports that primary optic gliomas have been recognized as a cause of the diencephalic syndrome. Most authors who use the term optic glioma mean a primary tumor arising in the optic nerve or chiasm; see, for example, Smith et al (Failure to thrive: The diencephalic syndrome of infancy and childhood. J Neurosurg 23:348-351, 1965).
Smith KR. Diencephalic Syndrome. Arch Neurol. 1973;29(3):206. doi:10.1001/archneur.1973.00490270088018