Summary
The diagnosis of infantile neuro-axonal dystrophy (INAD) in a 5-year-old patient was confirmed by the ultrastructural study of neuromuscular, skin and conjunctival biopsy specimens. Abnormal networks of smooth membranous, lamellar and tubular profiles were found in presynaptic terminals and in conjunctival and dermal axons.
INAD is the first neurological disease outside the group of storage disorders in which skin and conjunctival biopsies contribute significantly to the diagnosis.
References
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Martin, J.J., Leroy, J.G., Libert, J. et al. Skin and conjunctival biopsies in infantile neuroaxonal dystrophy. Acta Neuropathol 45, 247–251 (1979). https://doi.org/10.1007/BF00702677
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DOI: https://doi.org/10.1007/BF00702677