Back to Disease DictionaryCancer

Lymphoma in Cats

The most common malignant tumor in cats, originating from lymphoid tissue. Gastrointestinal type is most common, with known association to FeLV infection.

Vet Supervised

Symptoms

  • Weight loss
  • Loss of appetite
  • Vomiting/diarrhea
  • Enlarged lymph nodes
  • Breathing difficulty (mediastinal type)

Causes

  • FeLV infection
  • FIV infection
  • Chronic inflammation (IBD)
  • Genetic predisposition
  • Environmental factors

Diagnosis

1

Cytology (FNA)

2

Biopsy + histopathology

3

Blood tests

4

Ultrasound/CT scan

5

Bone marrow examination

Treatment

  • Chemotherapy (COP/CHOP protocol)
  • Steroids (palliative)
  • Radiation therapy
  • Surgical excision (localized cases)

Prognosis

Varies greatly by type and stage. Small-cell type has good prognosis (median survival 2+ years), large-cell type is poor (months).

Severity: High

Prevention

  • FeLV vaccination
  • Regular health checkups
  • Early IBD management

Epidemiology

Age Range

Most common in middle-aged to senior cats (average 10-12 years)

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