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Splenic cysts are differentiated into primary and secondary cysts based on epithelial lining. Primary non-parasitic epithelial splenic cysts are extremely rare. We report a case of a 24-year-old male with left hypochondrial swelling with no history of abdominal trauma.

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Splenic cysts are rare medical conditions, and their incidence is dominated by parasitic types. Non-parasitic splenic cysts, whether true cysts (with a cellular lining of the cystic wall) or pseudocysts (without a cellular lining), are significantly rarer than parasitic ones. Their etiology is not fully established, with fetal remnant development, metaplasia, and mesothelial invagination being widely accepted possible mechanisms.

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Life cycle of Amblyomma calcaratum (Ixodida: Ixodidae) under laboratory conditions.

Parasitol Res

November 2024

Department of Preventive Veterinary Medicine and Animal Health, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil.

The life-cycle of Amblyomma calcaratum was evaluated experimentally under laboratory conditions using birds (Serinus canaria, Gallus gallus) and rodents (Calomys callosus) as hosts for immatures and a rabbit (Oryctolagus cuniculus) as host for adults. Developmental periods of the non-parasitic stages were observed in an incubator at 27 °C and 90% RH. The passerine S.

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Zoonotic Dirofilaria sp. "hongkongensis" in subcutaneous nodules from dogs and cats, Hong Kong SAR.

Parasit Vectors

November 2024

Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China.

Background: Dirofilaria sp. "hongkongensis" is a putative Dirofilaria species, initially identified in subcutaneous nodules in humans in Hong Kong and in other South and Southeast Asian regions. While it differs genetically from the better-known zoonotic species, Dirofilaria repens and Dirofilaria immitis, information on the lesions caused by Dirofilaria sp.

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Caenorhabditis elegans as a Model for Evaluating the Toxicology of Inorganic Nanoparticles.

J Appl Toxicol

November 2024

Graduation Program in Biochemistry, Laboratory of Biochemistry and Toxicology in Caenorhabditis elegans (GBToxCe), Federal University of Pampa, Uruguaiana, RS, Brazil.

Inorganic nanoparticles are nanomaterials with a central core composed of inorganic specimens, especially metals, which give them interesting applications but can impact the environment and human health. Their short- and long-term effects are not completely known and to investigate that, alternative models have been successfully used. Among these, the nematode Caenorhabditis elegans has been increasingly applied in nanotoxicology in recent years because of its many features and advantages for toxicological screening.

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