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  • Title: Brain CT and MR findings in hyperphenylalaninemia due to dihydropteridine reductase deficiency (variant of phenylketonuria).
    Author: Sugita R, Takahashi S, Ishii K, Matsumoto K, Ishibashi T, Sakamoto K, Narisawa K.
    Journal: J Comput Assist Tomogr; 1990; 14(5):699-703. PubMed ID: 2398144.
    Abstract:
    Two siblings with malignant hyperphenylalaninemia were examined by magnetic resonance (MR) imaging and CT of the brain. Both techniques demonstrated diffuse cerebral atrophy and cystic loss of parenchyma with surrounding white matter changes. T2-weighted MR images demonstrated the white matter changes better than CT. However, MR images gave no definite indication of the presence of calcification, and CT demonstrated the characteristic calcifications in the basal ganglia and subcortical region bilaterally. Both MR and CT are complementary in the evaluation of this disease.
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