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Radiodense Ions Within a Third Ventricular Colloid Cyst
James O. Donaldson, MD;
Richard H. Simon, MD
Arch Neurol. 1980;37(4):246.
Abstract
The mucinous contents of a third ventricular colloid (neuroepithelial) cyst is invisible with standard radiographic techniques, but is radiodense with computerized tomography. Atomic emission spectrometry detected primarily sodium, calcium, and magnesium with the mucin. The absorption coefficient of colloid cysts (42 to 76 Hounsfield units) is attributed to the distribution of calcium throughout the mucin.
Author Affiliations
From the Department of Neurology (Dr Donaldson) and the Division of Neurosurgery (Dr Simon), University of Connecticut School of Medicine, Farmington.
Footnotes
Accepted for publication May 20, 1979.
Reprint requests to Department of Neurology, University of Connecticut Health Center, 263 Farmington Ave, Farmington, CT 06032 (Dr Donaldson).
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ABSTRACT
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