Abstract:
:Alexander disease is a leukodystrophy caused by dominant missense mutations in the gene encoding the glial fibrillary acidic protein. Individuals with this disorder often present with a typical neuroradiologic pattern including white matter abnormalities with brainstem involvement, selective contrast enhancement, and structural changes to the basal ganglia/thalamus. In rare cases, focal lesions have been seen and cause concern for primary malignancies. Here the authors present an infant initially diagnosed with a chiasmatic astrocytoma that was later identified as having glial fibrillary acidic protein mutation-confirmed Alexander disease. Pathologic and radiologic considerations that were helpful in arriving at the correct diagnosis are discussed.
journal_name
J Child Neuroljournal_title
Journal of child neurologyauthors
Tavasoli A,Armangue T,Ho CY,Whitehead M,Bornhorst M,Rhee J,Hwang EI,Wells EM,Packer R,van der Knaap MS,Bugiani M,Vanderver Adoi
10.1177/0883073816673263subject
Has Abstractpub_date
2017-02-01 00:00:00pages
184-187issue
2eissn
0883-0738issn
1708-8283journal_volume
32pub_type
杂志文章abstract::Retinoblastoma is the most common primary intraocular malignancy of childhood. It typically presents with leukocoria or strabismus. In later stages of the disease, the child may exhibit proptosis, buphthalmos, or hypopyon. The pathognomonic molecular aberration is a loss of function mutation in the RB1 gene on chromos...
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