Morphological characterization of Cysticercus cellulosae in naturally infected pigs in Punjab (India)

Chawhan, Pradeep; Sharma, Ramesh K.; Gill, Jatinder Paul Singh

doi:10.1007/s12639-014-0482-y

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Histomorphologically, there are few significant differentiating features to classify these subspecies. The most easily recognizable feature is that C. cellulosae can have 22-32 small and large hooklets, whereas C. bovis (the larval form of T. saginata ) can have none and C. viscerotropica (larval form of T. asiatica) will have only rudimentary hooks ( 13 , 14 ).…”

Section: Discussionmentioning

confidence: 99%

Cysts that still persist: a case series of cysticercosis on histopathological evaluation

Lobo

Vatsala²,

Adiga

et al. 2020

TJPATH

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Cysticercus is the infective larval form of the cystode T. solium that causes cysticercosis. It is has been declared as one of the neglected endemic zoonoses by the WHO. Poor sanitation, and consumption of undercooked infected pork and raw vegetables contaminated by human feces are the potential sources. Cysticercosis can affect various organs. India is one of the endemic countries where the parasite is prevalent in many states. This study aimed to analyze and report cases of cysticercosis based on the histopathological diagnosis. This is a retrospective study that included cases which had been reported as cysticercosis on histopathology from 2010 to 2018 at a tertiary care hospital. The clinical presentation of these cases along with macroscopic and microscopic features were reviewed. There were six cases of cysticercosis that were diagnosed on histopathology during the study period. Among them, two cases were intramuscular lesions, three were subcutaneous, and one case was an intraventricular lesion in the brain. Three of the cases presented as cystic lesions. On histopathological evaluation, cysts were identified in four cases on macroscopy. Microscopically, the cross section of the cysticercus was seen in all six cases with associated inflammatory change. To conclude, cysticercosis can clinically present as a benign neoplastic or an inflammatory lesion. Microscopic findings dictate the diagnosis of cysticercosis, although histopathological evaluation is not common.

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Section: Discussionmentioning

confidence: 99%

Cysts that still persist: a case series of cysticercosis on histopathological evaluation

Lobo

Vatsala²,

Adiga

et al. 2020

TJPATH

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“…with 70% alcohol again, for a few minutes. Then the cysts were dehydrated in 90% alcohol for 1 h, then placed in xylene and mounted in Canada balsam (Chawhan et al, 2014). Nine measurements were included for morphometric analysis of the small and large rostellar hooks, according to Haukisalmi et al (2011), Fig.…”

Section: Methodsmentioning

confidence: 99%

Caracterización Morfológica De Los Ganchos Rostelares De Metacestodos De Taenia Solium Linnaeus, 1758 (Cestoda: Cyclophyllidea), Extraídos De Un Cerdo Naturalmente Infectado De Guatemala

Oliva-Chacón¹,

Silva-Feliciano²,

Hernández-Chea³

2020

Neotrop Helminthol

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Taenia solium Linnaeus, 1758 es el agente etiológico del complejo teniasis/cisticercosis, causante de teniasis en el humano (hospedador definitivo) y cisticercosis porcina en los cerdos (hospedador intermediario). La mayor complicación ocurre cuando los humanos accidentalmente ingieren huevos de T. solium y adquieren la neurocisticercosis; la causa principal de epilepsia en los países subdesarrollados. La cisticercosis porcina afecta inmensamente a los productores rurales debido a las pérdidas económicas por decomisos o pérdida de la carne infectada. Aunque las características morfológicas de T. solium están bien establecidas, existe limitada información sobre la morfología completa de los ganchos rostelares de los metacestodos. El objetivo de este estudio fue caracterizar morfológicamente los ganchos rostelares de metacestodos, utilizando características morfométricas aún no aplicadas en T. solium. Además se describe una infección masiva por cisticercosis porcina. Como parte de un estudio piloto, un cerdo macho del departamento de Zacapa fue examinado y diagnosticado con cisticercosis porcina. Se realizó la palpación lingual y necropsia, y se encontró una alta carga parasitaria, el número estimado de metacestodos fue de 40,500. De los cuales 340 fueron colocados en una solución de bilis para estimar el porcentaje de viabilidad. El 97.6% fue encontrado evaginado y con movimientos contráctiles. En el análisis morfológico, los ganchos que se encontraron fueron similares en largo y ancho a los reportados en otros estudios de T. solium. Futuros estudios deben ser comparados usando los parámetros morfométricos de los ganchos rostelares para descartar o determinar variación morfológica intraespecífica de T. solium. Las características morfológicas de los ganchos rostelares deberían considerarse como una guía rápida de identificación durante las necropsias de cerdos de traspatio, principalmente cuando se encuentran quistes de Taenia sp. en las vísceras. Nuestros hallazgos sugieren la presencia de áreas rurales altamente endémicas de T. solium en Guatemala.

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Pathological and molecular identification of porcine cysticercosis in Maharashtra, India

Satyaprakash

Khan²,

Chaudhari³

et al. 2018

Acta Parasitologica

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Porcine cysticercosis, caused by metacestodes of Taenia solium is an important emerging zoonotic disease with public health and economic significance. Pigs acquire the disease through consumption of Taenia solium eggs excreted by human tapeworm carriers. The present study was conducted to investigate the prevalence of porcine cysticercosis in Nagpur and Mumbai region of Maharashtra, India by P/M examination of carcasses followed by histopathology of affected organs in infected animals and molecular identification of cysts for confirmation. Out of 1000 pigs examined during slaughter, three pigs were found to be heavily affected with T. solium cysts giving a prevalence of 0.3%. Histological section of brain in infected animals revealed marked vascular congestion of meninges, mild neuronal degeneration, perivascular cuffing and gliosis while the liver showed the infiltration of mononuclear cell, predominantly eosinophils throughout the parenchyma. Some degree of calcification was observed in the cysts lodged in liver while calcification was not evident in case of cysts lodged in brain, tongue, diaphragm and skeletal muscle. Molecular identification by PCR using two sets of oligonucleotide primers against LSU rRNA gene and Mt-Cox1 gene of T. solium confirms the cysts to be that of T. solium. The molecular diagnostics methods have been considered for validation in conjunction with P/M inspections, parasitological and histopathological examinations. The study confirms the presence of porcine cysticercosis in the two regions and demands proper sanitary measures to minimize the risk of infection from zoonoses and food safety point of view.

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Morphological characterization of Cysticercus cellulosae in naturally infected pigs in Punjab (India)

Cited by 3 publications

References 8 publications

Cysts that still persist: a case series of cysticercosis on histopathological evaluation

Cysts that still persist: a case series of cysticercosis on histopathological evaluation

Caracterización Morfológica De Los Ganchos Rostelares De Metacestodos De Taenia Solium Linnaeus, 1758 (Cestoda: Cyclophyllidea), Extraídos De Un Cerdo Naturalmente Infectado De Guatemala

Pathological and molecular identification of porcine cysticercosis in Maharashtra, India

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