• Optic nerve head drusen are rare, inherited concretions, which are almost always calcified; their appearance must be known because they represent one of the major causes of pseudopapilledema. The computed tomographic (CT) scan can show small and buried drusen, which are sometimes difficult to diagnose by the ophthalmoscopic examination. Four cases of drusen (two bilateral and two unilateral) were confirmed or diagnosed by high-resolution CT. The CT appearance of drusen is characteristic because the calcifications are well defined, punctate, and strictly located in the optic disc. The use of high-resolution CT scanners is very helpful.
Bec P, Adam P, Mathis A, Alberge Y, Roulleau J, Arne JL. Optic Nerve Head Drusen: High-Resolution Computed Tomographic Approach. Arch Ophthalmol. 1984;102(5):680–682. doi:10.1001/archopht.1984.01040030536010
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