Pentastomids in Geckos

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Presentation Description

An infection of pentastomids in captive geckos. Dr. Reavill must have done this when she still had a sense of humor.

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Zoo/Exotic Pathology Service : 

Zoo/Exotic Pathology Service Robert E. Schmidt, DVM, PhD Diplomate, American College of Veterinary Pathologists Drury R. Reavill, DVM ABVP, Certified in Avian Practice, Diplomate, American College of Veterinary Pathologists 1-800-457-7981

Pentastomiasis in tokay geckos (Gekko gecko) : 

Pentastomiasis in tokay geckos (Gekko gecko) Drury Reavill, DVM, ABVP, ACVP Linda Davidson, RVT David Reese, BS

Pentastomida : 

Pentastomida Life cycle 1. Adults in lungs of reptiles 2. Eggs passed out of host 5. Invertebrate or vertebrate intermediate host 6. Eaten by definitive reptile host

Pentastomida : 

Pentastomida Three genera in lizards Monitors: Elenia and Sambonia Raillietiella: in many small lizards, snakes, and amphibians

Pentastomida : 

Pentastomida Gecko Raillietiellagehyrae Bovien, 1927, and Raillietiella frenatus American cockroach (Periplaneta americana) as the intermediate host

Pentastomida : 

Pentastomida Little to no tissue reaction Evade the immune system and reduce tissue inflammation by coating the chitinous cuticle with their own stage-specific surfactant

Pentastomida : 

Pentastomida Aberrant hosts Potential zoonotic disease

Case Report : 

Case Report Breeding pair of wild caught tokay geckos No clinical signs Fecal examination

Case Report : 

Case Report Large eggs, ~100µm, thin shelled, embyronated

Case Report : 

Case Report Gross and histologic examination Identification Raillietiella frenatus

Case Report : 

Case Report Gross examination

Case Report : 

Case Report Histologic examination

Case Report : 

Case Report Identification Raillietiella frenatus

Case Report : 

Case Report To treat or not?

Pentastomida : 

Pentastomida Therapy Levamisole Thiabendazole Fenbendazole Praziquantal Ivermectin Surgical removal

Thank you : 

Thank you Dr. Robert Schmidt and Dr. Ellis Greiner