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Published on: December 27, 2024
[Canine lymphadenitis caused by Cryptococcus neoformans. First case in Chile]
Pamela Thomson1, Gabriel Miranda, Víctor Silva
1Programa de Microbiología y Micología, ICBM, Facultad de Medicina, Universidad de Chile, Independencia 1027, Santiago, Chile.
Insights
This study details the first canine cryptococcosis case in Chile, caused by Cryptococcus neoformans affecting lymph nodes. Treatment with ketoconazole led to a full recovery, with no recurrence two years later.
Area of Science:
- Veterinary Mycology
- Infectious Diseases
Background:
- Cryptococcosis is a fungal infection that can affect animals and humans.
- Canine cryptococcosis is rare, with limited case reports globally.
Observation:
- A Rottweiler dog in Chile presented with generalized lymphadenomegaly affecting multiple lymph nodes.
- Biopsies confirmed the presence of Cryptococcus neoformans in affected lymph node tissue.
Findings:
- The canine patient was successfully treated with oral ketoconazole over six months.
- The dog showed complete clinical improvement and remained infection-free two years post-treatment.
Implications:
- This case highlights the potential for Cryptococcus neoformans to cause lymphadenomegaly in dogs in Chile.
- Effective antifungal treatment protocols can lead to favorable outcomes in canine cryptococcosis.
- Further surveillance for fungal infections in veterinary patients is warranted.
Abstract:
We report the first case of canine lymphoadenomegalia caused by Cryptococcus neoformans in Chile. Physical examination of a Rottweiler dog patient showed a generalized lymphoadenomegalia that affected the submandibular, superficial cervical and popliteus lymphatic nodules. Cryptococcus neoformans was isolated and identified from biopsies of the right submandibular nodule. After antifungal susceptibility, oral ketoconazole treatment was established for a period of six months showing clinical improvement. Two years post-treatment the patient showed no signs of the infection.
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