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)

Related Symptom Pages

Weight Loss Loss of Appetite Vomiting Diarrhea Lethargy Difficulty Breathing

Causes

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

Diagnosis

Cytology (FNA)

Biopsy + histopathology

Blood tests

Ultrasound/CT scan

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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