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A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions

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Published on: December 15, 2023

Cutaneous toxoplasmosis in two dogs.

Aline Rodrigues Hoffmann¹, Jennifer Cadieu, Matti Kiupel

¹Department of Veterinary Pathobiology, College of Veterinary Medicine, MS4467 Texas A&M University, College Station, TX 77843, USA. arodrigues@cvm.tamu.edu

Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc

|April 25, 2012

Summary

Cutaneous toxoplasmosis, a rare skin infection in dogs, can occur in immunosuppressed animals. This study details two canine cases, highlighting varied clinical signs and treatment outcomes with clindamycin.

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3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii

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Published on: December 9, 2014

Area of Science:

Veterinary Dermatology
Infectious Diseases
Parasitology

Background:

Cutaneous toxoplasmosis is infrequently documented in domestic animals, with limited reports in dogs, often associated with systemic disease.
This study focuses on two canine cases of cutaneous toxoplasmosis, specifically in dogs undergoing immunosuppressive therapy, a potential predisposing factor.

Observation:

Clinical presentations varied, including generalized pustules and pruritus in one dog and a solitary subcutaneous nodule in the other.
Histopathological examination revealed severe pyogranulomatous and necrotizing dermatitis and panniculitis, characterized by vasculitis and thrombosis.
Protozoal tachyzoites of *Toxoplasma gondii* were identified within inflammatory cells and tissues.

Findings:

Immunohistochemistry and PCR assays confirmed *Toxoplasma gondii* as the causative agent in both canine patients.
Treatment with clindamycin was initiated for both dogs.
Prognosis differed significantly: one dog experienced systemic complications and was euthanized, while the other with a single lesion achieved a full recovery.

Implications:

This report expands the understanding of cutaneous toxoplasmosis manifestations in dogs, particularly in immunosuppressed individuals.
It underscores the importance of considering *Toxoplasma gondii* in the differential diagnosis of canine dermatological conditions.
The varied clinical outcomes emphasize the need for further research into prognostic factors and optimal therapeutic strategies for canine toxoplasmosis.