Cysticercosis with an Orbital Tropism in Twins

Bradford W. Lee Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Usha R. Kumar Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Jonathan H. Lin Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Deirdre E. Amaro Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Don O. Kikkawa Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Ramzi M. Alameddine Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Maureen C. Lowe Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Peter A. Hilger Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Joseph M. Vinetz Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Bobby S. Korn Department of Ophthalmology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, University of California San Diego School of Medicine, San Diego, California; Department of Pathology, Regions Hospital, Saint Paul, Minnesota; Department of Otolaryngology, University of Minnesota, Minneapolis, Minnesota; Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, San Diego, California

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Two fraternal twin sisters developed cysticercosis localizing to the right lateral orbit over the same period after a presumed common-source exposure in China. This case demonstrates that cysticercosis can be related to travel. Similar temporal and spatial occurrences of these infections suggest a genetic tropism of the infecting organism in these twins.

Author Notes

* Address correspondence to Bobby S. Korn, 9415 Campus Point Drive, La Jolla, CA 92037, E-mail: bkorn@ucsd.edu or Joseph M. Vinetz, 9500 Gilman Drive 0760, BRF-2, Room 4A16, La Jolla, CA 92093-0760, E-mail: jvinetz@ucsd.edu.
† These authors contributed equally to this work.

Financial support: This work was supported by Research to Prevent Blindness.

Authors' addresses: Bradford W. Lee, Usha R. Kumar, Don O. Kikkawa, Ramzi M. Alameddine, and Bobby S. Korn, Department of Ophthalmology, University of California San Diego, La Jolla, CA, E-mails: bradwlee@ucsd.edu, urkumar@ucsd.edu, dkikkawa@ucsd.edu, ralameddine@ucsd.edu, and bkorn@ucsd.edu. Jonathan H. Lin, Department of Ophthalmology and Pathology, University of California San Diego, La Jolla, CA, E-mail: jlin@ucsd.edu. Deirdre E. Amaro, Department of Pathology, University of California San Diego, La Jolla, CA, E-mail: damaro@ucsd.edu. Maureen C. Lowe, Department of Pathology, Regions Hospital, Saint Paul, MN, E-mail: maureen.c.lowe@healthpartners.com. Peter A. Hilger, Department of Otolaryngology, University of Minnesota, Minneapolis, MN, E-mail: hilge006@umn.edu. Joseph M. Vinetz, Center for Tropical Diseases, University of California San Diego School of Medicine, La Jolla, CA, E-mail: jvinetz@ucsd.edu.

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