Identification of parasitic metazoa in tissue sections

Chitwood, M. B.; Lichtenfels, J. R.

doi:10.1016/0014-4894(72)90069-0

Cited by 131 publications

(80 citation statements)

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“…Metazoan parasites observed in histologic section were assigned to one of several major phyla of metazoan tissue parasites (e.g., Platyhelminthes and Nematoda) based on characteristic histologic features as described by Chitwood and Lichtenfels (1972) and complemented by Gardiner and Poynton (1999). Platyhelminth parasites were further characterized as members of Trematoda or Cestoda in instances where differentiating anatomic features were identifiable in histologic section.…”

Section: Parasitologymentioning

confidence: 99%

Pathologic and Parasitologic Findings of Cold-Stunned Kemp’s Ridley Sea Turtles (Lepidochelys Kempii) Stranded on Cape Cod, Massachusetts, 2001–2006

Innis

Nyaoke

Williams

et al. 2009

Journal of Wildlife Diseases

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ABSTRACT:Necropsy reports for 28 stranded, cold-stunned Kemp's ridley sea turtles (Lepidochelys kempii) that died between 2001 and 2006 were reviewed retrospectively. Gross and microscopic lesions were compiled to describe the pathologic and parasitologic findings in turtles that were found freshly dead on the beach or that died within 48 hr of stranding. Anatomic lesions of varying severity were identified in each of the examined turtles and were identified in tissues of the alimentary, respiratory, integumentary, nervous and sensory, and urogenital systems in order of decreasing frequency. Necrotizing enterocolitis and bacterial or fungal pneumonia were the most frequently encountered lesions that were considered clinically significant. Parasites and parasitic lesions were identified primarily in tissues of the alimentary system and included intestinal cestodiasis and parasitic granulomas containing larval cestodes or nematodes. Postlarval cestodes were also found in the coelom of two turtles. In many cases, the extent and severity of lesions were judged to be insufficient to have solely caused mortality, suggesting that additional factors such as metabolic, respiratory, and electrolyte derangements; hypothermia; and drowning may be important proximate causes of death in cold-stunned turtles. Results of this study provide insight into pathologic conditions that may be of clinical relevance to rehabilitation efforts for coldstunned sea turtles.

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Section: Parasitologymentioning

confidence: 99%

Pathologic and Parasitologic Findings of Cold-Stunned Kemp’s Ridley Sea Turtles (Lepidochelys Kempii) Stranded on Cape Cod, Massachusetts, 2001–2006

Innis

Nyaoke

Williams

et al. 2009

Journal of Wildlife Diseases

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“…1,2 The mass comprised a mixture of granulocytic and mononuclear leucocytes, centred on the helminth parasites. (One voucher slide is deposited in the Australian National Wildlife Collection, CSIRO Ecosystem Sciences, Canberra, accession no.…”

Section: Pathological Findingsmentioning

confidence: 99%

Acanthocephalan infection and sparganosis in a green tree snake (Dendrelaphis punctulata)

Hill

Ladds²,

Spratt

2014

Aust Veterinary J

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“…Postdeirid left dorsolaterally at the proximal end level of retracted left spicule. Ventral ridges (according to Chitwood and Lichtenfels, 1972) Description Male (10 specimens): Body 63 mm to 78 mm long and 330 to 510 wide at dilatate level. Nerve ring 290 to 370 from anterior end.…”

Section: Descriptionmentioning

confidence: 99%

Filarial parasites from the black bear of Japan

Uni

1983

Ann. Parasitol. Hum. Comp.

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SUMMARY. Parasitological examinations were made on the tissues and the blood of the black bears (Selenarctos thibetanus japonicus) of Japan. Three kinds of filarial parasites were found in the tissues and the blood of the hosts: Dirofilaria ursi, Tetrapetalonema (Tetrapetalonema) akitensis sp. n. and Dipetalonema (Chenofilaria) japonica sp. n. The male and the microfdaria of D. ursi were described from the type host animal. Japanese specimens of D. ursi were compared with the specimens from American black bears of Alaska and Canada, and it was found that the measurement data obtained were similar to each other. Within the subgenus Tetrapetalonema, T. akitensis resembled T. interstitium and T. llewellyni of North America, but was distinguished from them by the longer esophagus and smaller microfilariae. Several other species of the same subgenus from monkeys of South America were different from T. akitensis due to the presence of the terminal nucleus of their microfilariae. Within the subgenus Cheno filaria, D. japonica closely resembled D. johnstoni and D. pearsoni of Australia, but was different from D. johnstoni due to the salient preesophageal cuticular ring and relatively longer tail of the female. Besides, D. pear soni was much longer than D. japonica in the body length.

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Identification of parasitic metazoa in tissue sections

Cited by 131 publications

References 0 publications

Pathologic and Parasitologic Findings of Cold-Stunned Kemp’s Ridley Sea Turtles (Lepidochelys Kempii) Stranded on Cape Cod, Massachusetts, 2001–2006

Pathologic and Parasitologic Findings of Cold-Stunned Kemp’s Ridley Sea Turtles (Lepidochelys Kempii) Stranded on Cape Cod, Massachusetts, 2001–2006

Acanthocephalan infection and sparganosis in a green tree snake (Dendrelaphis punctulata)

Filarial parasites from the black bear of Japan

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