Zoonotic Anatrichosomiasis in an Illinois Resident

Mark L. Eberhard Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Atlanta Research and Education Foundation, Atlanta VA Medical Center, Atlanta, Georgia; Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa

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Blaine Mathison Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Atlanta Research and Education Foundation, Atlanta VA Medical Center, Atlanta, Georgia; Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa

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Henry Bishop Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Atlanta Research and Education Foundation, Atlanta VA Medical Center, Atlanta, Georgia; Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa

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Nidhi Q. Handoo Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Atlanta Research and Education Foundation, Atlanta VA Medical Center, Atlanta, Georgia; Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa

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John W. Hellstein Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia; Atlanta Research and Education Foundation, Atlanta VA Medical Center, Atlanta, Georgia; Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa

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We describe a case of zoonotic anatrichosomiasis in a patient from Illinois. A 44-year-old immigrant from Mexico originally presented with a history of multiple oral ulcers and two submucosal nodules on the dorsal surface of the tongue. An incisional biopsy was taken to assist with diagnosis. Examination of stained sections revealed the presence of a coiled nematode. The histologic examination displayed trichuroid features. Anatomic structures that aided in the identification included esophagus embedded in a prominent stichosome in the anterior end, paired bacillary bands, and small size. The location of the worm within the oral mucosal epithelium also facilitated the diagnosis.

Author Notes

*Address correspondence to Mark Eberhard, Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30341-3724. E-mail: meberhard@cdc.gov

Authors' addresses: Mark L. Eberhard and Henry Bishop, Division of Parasitic Diseases, Centers for Disease Control and Prevention, Atlanta, GA, E-mail: meberhard@cdc.gov. Blaine Mathison, Atlanta Research and Education Foundation, Atlanta VA Medical Center, Decatur, GA. John W. Hellstein and Nidhi Q. Handoo, Oral Pathology, Radiology and Medicine, University of Iowa, Iowa City, IA.

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