Equine lymphoma

Veterinary advice should be sought before applying any treatment or vaccine.

Equine Lymphoma

Lymphosarcoma, Malignant Lymphoma

Equine lymphoma, also known as lymphosarcoma, is a form of cancer which involves the horse's lymphatic system. It most often starts in one lymph node but will eventually spread throughout the body.

There are many types of lymphoma. Typically, tumors are multicentric and involve lymph nodes and thoracic and abdominal organs. They are most common in horses age 5 to 10 years of age but can occur at any age. Equine lymphoma presents in four different anatomic forms.

Generalized
CutaneousAlimentaryMediastinal
Clinical signs:Chronic and progressiveMultifocal to generalized exfoliative dermatitis
Focal areas of nodules or ulcerations
Pruritis
Weight loss
Intermittent colic
Fever
Chronic diarrhea
Dyspnea
Coughing
Recurrent pleural effusion

Symptoms

Chronic weight loss
67%
Abdominal swelling
57%
Cutaneous lesions
57%

Diagnosis

  • History
  • Clinical signs
  • Physical exam
  • Laboratory tests

Treatment


TreatmentDetails
Immunosuppressive glucocorticoid therapy
Chemotherapy consisting of lomustine (CCNU) and prednisolone
Surgery

Scientific Research References

Good Overviews

Commonly Affected Breeds

Thoroughbred icon