Ectopic infection by Dioctophyme renale in a dog from Georgia, USA, and a review of cases of ectopic dioctophymosis in companion animals in the Americas.
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We report a case of ectopic dioctophymosis in an outdoor, eight-year-old spayed female, Coonhound-mix dog from Murrayville, Hall County, Georgia, USA. The dog presented to the clinic with an apparent puncture wound on her right, most caudal mammary gland, draining a serosanguinous discharge along with significant edema and thickening of the surrounding tissues. After initial physical examination the dog was placed into a cage awaiting diagnostic procedures. A couple of hours later, a bright red, live nematode was found in the bottom of the cage and submitted to the Parasitology Diagnostic Laboratory, Department of Infectious Diseases of the University of Georgia College of Veterinary Medicine. The specimen was morphologically identified as a female Dioctophyme renale, measuring 30cm in length. The wound was cleaned with chlorhexidine solution. The patient was started on cefpodoxime 100mg orally, once daily for 10days. The dog had recent history of a mammary tumor on the left chain. After a week, an ultrasound examination confirmed integrity of the kidneys. Herein, we also provide a review on cases of ectopic dioctophymosis in companion animals in the Americas. Such cases are not uncommon, and nematodes may be found in various organs and tissues including the abdominal and thoracic cavities, scrotum, uterus, and mammary glands.
