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Multiple neuroepithelial (colloid) cysts

Association with other congenital anomalies

Departments of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand, and Vanderbilt University School of Medicine, Nashville, Tennessee.

A 4-year-old boy had three neuroepithelial cysts, one in the third ventricle and two in the supratentorial subarachnoid space, and also had stenosis of the cerebral aqueduct, obstructive internal hydrocephalus, frontoethmoidal meningoencephalocele, and right microphthalmia. The occurrence of these combined lesions supports the congenitally derived nature of the cysts. The cysts originated from neuroepithelium including ectopic ependyma-lined structures. The exception may be those cysts arising in or near the floor of the third ventricle; these cysts could be derived from the cleft of Rathke's pouch, an endodermal derivative. Folding of the neuroepithelium in contact with mesenchymaor neuroglial tissue is proposed as the mode of formation of most "colloid" cysts. Review of the literature as well as our experience indicates that neuroepithelial cysts are widely distributed throughout the central nervous system.

Or. Netsky's address is Department of Pathology, Vanderbilt University School of Medicine, Nashville, TN 37232.

Received for publication July 8, 1976.

This article has been cited by other articles:

				F. T. Saulsbury, J. S. Sullivan, and E. J. Schmitt Sudden Death Due to Colloid Cyst of the Third Ventricle Clinical Pediatrics, March 1, 1981; 20(3): 218 - 219. [Abstract] [PDF]