RT Journal Article SR Electronic T1 Neuroimaging Features of Biotinidase Deficiency JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 328 OP 333 DO 10.3174/ajnr.A7781 VO 44 IS 3 A1 A. Biswas A1 C. McNamara A1 V.K. Gowda A1 F. Gala A1 S. Sudhakar A1 J. Sidpra A1 M.S. Vari A1 P. Striano A1 S. Blaser A1 M. Severino A1 S. Batzios A1 K. Mankad YR 2023 UL http://www.ajnr.org/content/44/3/328.abstract AB SUMMARY: Biotinidase deficiency is an autosomal recessive condition caused by pathogenic variants in the BTD gene. Resultant deficiency of free biotin leads to impaired activity of the enzyme carboxylase and related neurologic, dermatologic, and ocular symptoms. Many of these are reversible on treatment, but early recognition and commencement of biotin supplementation are critical. This practice is especially important in countries where routine neonatal screening for biotinidase deficiency is not performed. In this report comprising 14 patients from multiple centers, we demonstrate the MR imaging patterns of this disorder at various age groups. Knowledge of these patterns in the appropriate clinical context will help guide early diagnosis of this treatable metabolic disorder.