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  • Title: [Neuron-specific enolase in the aqueous humor. Its significance in the differential diagnosis of retinoblastoma].
    Author: Comoy E, Roussat B, Henry I, Bloch-Michel E.
    Journal: Ophtalmologie; 1990; 4(3):233-5. PubMed ID: 2250954.
    Abstract:
    Several studies support that retinoblastoma originates from a primitive neuroectodermal cell, the main argument being the expression of the neuron-specific enolase (NSE) by the retinoblastic cells. NSE was measured in the aqueous humor taken off: 1) in 19 patients with various eye disorders for which the diagnosis of retinoblastoma was definitely excluded (NSE = 5.0 +/- 7.7 micrograms/l); 2) at the time of the enucleation, in 7 cases of proved retinoblastoma (NSE = 83 to 17,900 micrograms/l); 3) in 2 cases of retinoblastoma held as cured for more than 5 years (NSE = 2.8 and 8.7 micrograms/l). The high level of NSE in the aqueous humor of the subjects with retinoblastoma is very significant, so that it can play a great part in the diagnosis, particularly in the case of atypic tumors. Specific indications of this determination may be considered for the survey of tumors under treatment or of the controlateral eye after a first tumor.
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