Research ArticlePEDIATRICS
The Perirolandic Sign: A Unique Imaging Finding Observed in Association with Polymerase γ-Related Disorders
F.G. Gonçalves, B. Hill, Y. Guo, C.C. Muraresku, E. McCormick, C.A.P.F. Alves, S.R. Teixeira, J.S. Martin-Saavedra, Z. Zolkipli-Cunningham, M.J. Falk, A. Vossough, A. Goldstein and G. Zuccoli
American Journal of Neuroradiology May 2020, DOI: https://doi.org/10.3174/ajnr.A6514
F.G. Gonçalves
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
B. Hill
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
Y. Guo
cDepartments of Pediatrics (Y.G., Z.Z.-C., M.J.F., A.G.)
C.C. Muraresku
bMitochondrial Medicine Frontier Program, Division of Human Genetics (C.C.M., E.M., Z.Z.-C., M.J.F., A.G.), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
E. McCormick
bMitochondrial Medicine Frontier Program, Division of Human Genetics (C.C.M., E.M., Z.Z.-C., M.J.F., A.G.), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
C.A.P.F. Alves
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
S.R. Teixeira
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
J.S. Martin-Saavedra
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
Z. Zolkipli-Cunningham
bMitochondrial Medicine Frontier Program, Division of Human Genetics (C.C.M., E.M., Z.Z.-C., M.J.F., A.G.), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
cDepartments of Pediatrics (Y.G., Z.Z.-C., M.J.F., A.G.)
M.J. Falk
bMitochondrial Medicine Frontier Program, Division of Human Genetics (C.C.M., E.M., Z.Z.-C., M.J.F., A.G.), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
cDepartments of Pediatrics (Y.G., Z.Z.-C., M.J.F., A.G.)
A. Vossough
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
dRadiology (A.V.), University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania.
A. Goldstein
bMitochondrial Medicine Frontier Program, Division of Human Genetics (C.C.M., E.M., Z.Z.-C., M.J.F., A.G.), Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
cDepartments of Pediatrics (Y.G., Z.Z.-C., M.J.F., A.G.)
G. Zuccoli
aFrom the Departments of Radiology and Division of Neuroradiology (F.G.G., B.H., C.A.P.F.A., S.R.T., J.S.M.-S., A.V., G.Z.)
eThe Program for the Study of Neurodevelopment in Rare Disorders (NDRD) (G.Z.), Children's Hospital of Pittsburgh of UPMC.

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The Perirolandic Sign: A Unique Imaging Finding Observed in Association with Polymerase γ-Related Disorders
F.G. Gonçalves, B. Hill, Y. Guo, C.C. Muraresku, E. McCormick, C.A.P.F. Alves, S.R. Teixeira, J.S. Martin-Saavedra, Z. Zolkipli-Cunningham, M.J. Falk, A. Vossough, A. Goldstein, G. Zuccoli
American Journal of Neuroradiology May 2020, DOI: 10.3174/ajnr.A6514
The Perirolandic Sign: A Unique Imaging Finding Observed in Association with Polymerase γ-Related Disorders
F.G. Gonçalves, B. Hill, Y. Guo, C.C. Muraresku, E. McCormick, C.A.P.F. Alves, S.R. Teixeira, J.S. Martin-Saavedra, Z. Zolkipli-Cunningham, M.J. Falk, A. Vossough, A. Goldstein, G. Zuccoli
American Journal of Neuroradiology May 2020, DOI: 10.3174/ajnr.A6514
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