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Tang, P. ALSP. Encyclopedia. Available online: https://encyclopedia.pub/entry/6015 (accessed on 20 September 2026).
Tang P. ALSP. Encyclopedia. Available at: https://encyclopedia.pub/entry/6015. Accessed September 20, 2026.
Tang, Peter. "ALSP" Encyclopedia, https://encyclopedia.pub/entry/6015 (accessed September 20, 2026).
Tang, P. (2021, January 04). ALSP. In Encyclopedia. https://encyclopedia.pub/entry/6015
Tang, Peter. "ALSP." Encyclopedia. Web. 04 January, 2021.

Adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) is a neurological condition characterized by changes to certain areas of the brain. A hallmark of ALSP is leukoencephalopathy, which is the alteration of a type of brain tissue called white matter. White matter consists of nerve fibers (axons) covered by a substance called myelin that insulates and protects them. The axons extend from nerve cells (neurons) and transmit nerve impulses throughout the body. Areas of damage to this brain tissue (white matter lesions) can be seen with magnetic resonance imaging (MRI). Another feature of ALSP is swellings called spheroids in the axons of the brain, which are a sign of axon damage. Also common in ALSP are abnormally pigmented glial cells. Glial cells are specialized brain cells that protect and maintain neurons. Damage to myelin and neurons is thought to contribute to many of the neurological signs and symptoms in people with ALSP.

genetic conditions

References

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  2. Freeman SH, Hyman BT, Sims KB, Hedley-Whyte ET, Vossough A, Frosch MP,Schmahmann JD. Adult onset leukodystrophy with neuroaxonal spheroids: clinical,neuroimaging and neuropathologic observations. Brain Pathol. 2009Jan;19(1):39-47. doi: 10.1111/j.1750-3639.2008.00163.x.
  3. Kleinfeld K, Mobley B, Hedera P, Wegner A, Sriram S, Pawate S. Adult-onsetleukoencephalopathy with neuroaxonal spheroids and pigmented glia: report of fivecases and a new mutation. J Neurol. 2013 Feb;260(2):558-71. doi:10.1007/s00415-012-6680-6.
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  7. Sundal C, Wszolek ZK. CSF1R-Related Adult-Onset Leukoencephalopathy withAxonal Spheroids and Pigmented Glia. 2012 Aug 30 [updated 2017 Oct 5]. In: AdamMP, Ardinger HH, Pagon RA, Wallace SE, Bean LJH, Stephens K, Amemiya A, editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle;1993-2020. Available from http://www.ncbi.nlm.nih.gov/books/NBK100239/
  8. Wider C, Van Gerpen JA, DeArmond S, Shuster EA, Dickson DW, Wszolek ZK.Leukoencephalopathy with spheroids (HDLS) and pigmentary leukodystrophy (POLD): asingle entity? Neurology. 2009 Jun 2;72(22):1953-9. doi:10.1212/WNL.0b013e3181a826c0. Review.
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