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An elderly woman with bilateral raccoon eyes

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  • Collaborators Drs Yamaguchi, Yamakawa, and Nohara contributed patient management.

  • Contributors All authors contributed to patient management. RI drafted the initial manuscript. All author contributed to writing the manuscript. All the authors have provided written consent for publication.

  • Competing interests None declared.

  • Patient consent Obtained.

  • Provenance and peer review Not commissioned; internally peer reviewed.