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Parasitic pneumonia caused by Paragonimus spp. in a wild Royal Bengal Tiger, Mysuru, South India.
J Parasit Dis 2019; 43(3):528-533JP

Abstract

Parasitic pneumonia induced by genus Paragonimus involves many species, which affects both humans and animals and it is a food borne zoonotic disease. In this report, we have described the gross and histopathological findings of Paragonimus fluke infection in lungs of tiger. The postmortem examination of sub adult male wild tiger (Panthera tigris tigris) died in captivity was conducted, earlier which was rescued by Forest Department, Mysuru, Karnataka, India. External examination of carcass revealed pale oral and conjunctival mucous membranes with sunken eye balls. During necropsy, moderate congestion, consolidation and numerous transparent to dark encysted lesions were found in the parenchyma of all lobes of lungs visible grossly on pleural surface. Lungs were hemorrhagic with necrotic foci around the cysts. The incision of encysted lesions revealed the presence of flukes (2-3 in numbers) in each cyst with brownish exudate. The lung tissues with lesions were collected in 10% formalin and haematoxylin and eosin staining was done for histopathological evaluation. The flukes were identified as Paragonimus spp. based on the morphology and micrometry. The histopathological examination revealed presence of longitudinal sections of flukes in bronchial lumen (in pair) with tegument and tegumental spines surrounded by connective tissue capsule as cystic encapsulation and numerous eggs in adjacent lung parenchyma. Necrosis and moderate fibrosis of lung parenchyma with infiltration of polymorphonuclear and mononuclear inflammatory cells were observed around fluke as well as eggs. The squamous cell metaplasia of lining bronchial epithelium and atelectasis of alveoli were also prominently seen.

Authors+Show Affiliations

1Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122 India.1Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122 India.1Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh 243122 India.Sri Chamarajendra Zoological Gardens, Mysuru, Karnataka India.3Department of Veterinary Parasitology, Veterinary College, KVAFSU, Shivamogga, 577204 India.4Institute of Animal Health and Veterinary Biologicals, KVAFSU, Hebbal, Bengaluru, 560024 India.4Institute of Animal Health and Veterinary Biologicals, KVAFSU, Hebbal, Bengaluru, 560024 India.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31406421

Citation

Dharanesha, N K., et al. "Parasitic Pneumonia Caused By Paragonimus Spp. in a Wild Royal Bengal Tiger, Mysuru, South India." Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology, vol. 43, no. 3, 2019, pp. 528-533.
Dharanesha NK, Saminathan M, Mamta P, et al. Parasitic pneumonia caused by Paragonimus spp. in a wild Royal Bengal Tiger, Mysuru, South India. J Parasit Dis. 2019;43(3):528-533.
Dharanesha, N. K., Saminathan, M., Mamta, P., Ramesh, K. R., Ananda, K. J., Giridhar, P., & Byregowda, S. M. (2019). Parasitic pneumonia caused by Paragonimus spp. in a wild Royal Bengal Tiger, Mysuru, South India. Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology, 43(3), pp. 528-533. doi:10.1007/s12639-019-01112-8.
Dharanesha NK, et al. Parasitic Pneumonia Caused By Paragonimus Spp. in a Wild Royal Bengal Tiger, Mysuru, South India. J Parasit Dis. 2019;43(3):528-533. PubMed PMID: 31406421.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Parasitic pneumonia caused by Paragonimus spp. in a wild Royal Bengal Tiger, Mysuru, South India. AU - Dharanesha,N K, AU - Saminathan,M, AU - Mamta,P, AU - Ramesh,K R, AU - Ananda,K J, AU - Giridhar,P, AU - Byregowda,S M, Y1 - 2019/04/05/ PY - 2019/01/17/received PY - 2019/03/29/accepted PY - 2020/09/01/pmc-release PY - 2019/8/14/entrez PY - 2019/8/14/pubmed PY - 2019/8/14/medline KW - Metaplasia KW - Mysuru KW - Paragonimus spp. KW - Pneumonia KW - Royal Bengal Tiger SP - 528 EP - 533 JF - Journal of parasitic diseases : official organ of the Indian Society for Parasitology JO - J Parasit Dis VL - 43 IS - 3 N2 - Parasitic pneumonia induced by genus Paragonimus involves many species, which affects both humans and animals and it is a food borne zoonotic disease. In this report, we have described the gross and histopathological findings of Paragonimus fluke infection in lungs of tiger. The postmortem examination of sub adult male wild tiger (Panthera tigris tigris) died in captivity was conducted, earlier which was rescued by Forest Department, Mysuru, Karnataka, India. External examination of carcass revealed pale oral and conjunctival mucous membranes with sunken eye balls. During necropsy, moderate congestion, consolidation and numerous transparent to dark encysted lesions were found in the parenchyma of all lobes of lungs visible grossly on pleural surface. Lungs were hemorrhagic with necrotic foci around the cysts. The incision of encysted lesions revealed the presence of flukes (2-3 in numbers) in each cyst with brownish exudate. The lung tissues with lesions were collected in 10% formalin and haematoxylin and eosin staining was done for histopathological evaluation. The flukes were identified as Paragonimus spp. based on the morphology and micrometry. The histopathological examination revealed presence of longitudinal sections of flukes in bronchial lumen (in pair) with tegument and tegumental spines surrounded by connective tissue capsule as cystic encapsulation and numerous eggs in adjacent lung parenchyma. Necrosis and moderate fibrosis of lung parenchyma with infiltration of polymorphonuclear and mononuclear inflammatory cells were observed around fluke as well as eggs. The squamous cell metaplasia of lining bronchial epithelium and atelectasis of alveoli were also prominently seen. SN - 0971-7196 UR - https://www.unboundmedicine.com/medline/citation/31406421/Parasitic_pneumonia_caused_by_Paragonimus_spp._in_a_wild_Royal_Bengal_Tiger,_Mysuru,_South_India DB - PRIME DP - Unbound Medicine ER -