Pythiosis (Lagenidiosis)
Also known as Swamp Cancer, Phycomycosis
Pythiosis is a severe infectious disease in pets caused by aquatic fungi, requiring immediate veterinary care.
See a vet now if
- Persistent non-healing wounds
- Rapid deterioration in health
Symptoms
Early signs
- Lethargy
- Loss of appetite and weight loss
As it progresses
- Non-healing skin wounds or invasive masses
- Vomiting, chronic diarrhea, or abdominal mass (gastrointestinal form)
Emergency signs
- Severe bleeding from lesions
- Signs of intestinal obstruction or organ failure
Causes
- Exposure to Pythium insidiosum
- Contact with contaminated water
Risk factors
- Living in warm, wet climates
- Frequent swimming in stagnant water
Body parts affected
How vets diagnose it
- Biopsy and histopathology
- PCR testing
Treatment
At home
- Wound cleaning
- Nutritional support
At the vet
- Antifungal medications
- Immunotherapy
Surgical
- Surgical removal of infected tissue
Prevention
- Avoid stagnant water
- Regular skin checks
Outlook
- Prognosis
- Varies; early treatment improves outcomes
- Typical recovery
- Several weeks to months, depending on severity
Pythiosis (Lagenidiosis) questions
What is Pythiosis?
Pythiosis is an infectious disease caused by waterborne fungi, affecting skin and internal organs.
How is Pythiosis treated?
Treatment involves antifungal drugs and possibly surgery.
Is Pythiosis contagious?
No, it cannot be spread from one animal to another.
Can Pythiosis affect humans?
It is rare, but humans can be affected, particularly those with weakened immune systems.
What animals are most at risk?
Dogs and horses in wet, warm climates are most susceptible.
Full clinical detail
Overview
Pythiosis, also known as Lagenidiosis or Swamp Cancer, is a serious infectious disease affecting animals, particularly dogs, cats, and horses. Caused by the aquatic oomycete Pythium insidiosum, this disease primarily occurs in warm, wet regions.
Causes
Pythiosis is caused by exposure to water containing Pythium insidiosum. Animals become infected when they come into contact with contaminated water sources.
Symptoms & Signs
In dogs and cats, pythiosis occurs mainly in two forms: cutaneous (skin) and gastrointestinal.
Early Symptoms
- Lethargy
- Loss of appetite and weight loss
Advanced Symptoms
- Non-healing skin wounds, ulcerated nodules, or invasive masses
- Vomiting, chronic diarrhea, or a firm abdominal mass (gastrointestinal form)
Emergency Signs
- Severe bleeding from lesions
- Signs of intestinal obstruction or organ failure
Diagnosis
Diagnosing Pythiosis involves a combination of clinical signs and laboratory tests, including:
- Biopsy and histopathology
- PCR testing
Treatment Options
Home Care
- Wound cleaning
- Nutritional support
Veterinary Care
- Antifungal medications
- Immunotherapy
Surgical Options
- Surgical removal of infected tissue
Home Care
Home care involves careful monitoring of wounds and ensuring the pet receives proper nutrition and hydration.
Prevention
- Avoid allowing pets to swim in stagnant water.
- Regularly check for skin lesions.
Prognosis & Recovery
The prognosis for Pythiosis varies. Early treatment can improve outcomes, but the disease can be life-threatening.
When to See a Vet
- Persistent non-healing wounds
- Rapid deterioration in health
FAQ
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What is Pythiosis? Pythiosis is an infectious disease caused by a waterborne oomycete (water mold), affecting the skin and gastrointestinal tract.
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How is Pythiosis treated? Treatment involves aggressive surgery, antifungal drugs, and immunotherapy.
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Is Pythiosis contagious? No, it cannot be spread from one animal to another; animals acquire it from the environment.
-
Can Pythiosis affect humans? It is rare, but humans can be affected, particularly those with weakened immune systems. It is acquired from the environment, not from infected animals.
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What animals are most at risk? Dogs and horses in wet, warm climates are most susceptible.
Worried about your pet?
This page is general guidance, not a diagnosis. A vet should examine your pet before any treatment starts.