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Cat Lipoma: A Vet’s 2025 Guide to Causes, Diagnosis, Treatment & Monitoring 🐱🧬

  • 84 days ago
  • 8 min read

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Cat Lipoma: A Vet’s 2025 Guide to Causes, Treatment & Monitoring 🐱🧬

Cat Lipoma: A Vet’s 2025 Guide to Causes, Diagnosis, Treatment & Monitoring 🐱🧬

By Dr Duncan Houston, BVSc

🔍 What Is a Lipoma?

Lipomas are benign, slow-growing tumors composed of fat cells under the skin. They feel soft, movable, and are usually painless. They’re uncommon in cats compared to dogs, typically seen in older animals :contentReference[oaicite:3]{index=3}.

Common locations include the abdomen, chest, neck, back, and upper legs :contentReference[oaicite:4]{index=4}.

⚠️ Causes & Risk Factors

  • Exact cause unknown; may be linked to genetic predisposition :contentReference[oaicite:5]{index=5}.
  • Older, neutered, male Siamese cats seem to be at greater risk :contentReference[oaicite:6]{index=6}.
  • Obesity is *not* a confirmed risk factor, though maintaining a healthy weight is advised :contentReference[oaicite:7]{index=7}.

🚩 Signs & Symptoms

  • A soft, round, movable lump under the skin—size may vary over months :contentReference[oaicite:8]{index=8}.
  • Usually asymptomatic—cats show no pain unless lump irritates movement or adjacent tissue :contentReference[oaicite:9]{index=9}.
  • Any lump that enlarges rapidly, feels firm or fixed, or causes discomfort may need urgent evaluation to rule out liposarcoma :contentReference[oaicite:10]{index=10}.

🔬 Diagnosis

  1. Physical examination: Veterinarian evaluates lump texture, mobility, size, and location :contentReference[oaicite:11]{index=11}.
  2. Fine-needle aspirate (FNA): Sampling fat cells verifies lipoma in most cases :contentReference[oaicite:12]{index=12}.
  3. Biopsy: If FNA is inconclusive or suspicious—provides definitive tissue diagnosis :contentReference[oaicite:13]{index=13}.
  4. Imaging & lab work: For surgical candidates—blood tests, ECG, and possible X‑rays ensure safety under anesthesia :contentReference[oaicite:14]{index=14}.

🛠️ Treatment Options

A. Monitoring ("Watch & Wait")

  • Many lipomas never require removal—monitor size and symptoms every 3 months :contentReference[oaicite:15]{index=15}.
  • Document with measurements or photos to track changes :contentReference[oaicite:16]{index=16}.

B. Surgical Removal

  • Indicated for large, fast-growing, infiltrative, or mobility-impairing lipomas :contentReference[oaicite:17]{index=17}.
  • Tissue removed surgically—most cats go home same day, with stitch removal in 10–12 days :contentReference[oaicite:18]{index=18}.
  • Curative when complete removal is achieved; recurrence is rare (~1–2%) :contentReference[oaicite:19]{index=19}.

C. Medical Alternatives & Specialists

  • Steroid injection: Triamcinolone acetate into small lipomas may shrink them—experimental, with variable recurrence :contentReference[oaicite:20]{index=20}.
  • Radiation therapy: For infiltrative lipomas or liposarcomas—used when complete excision is difficult :contentReference[oaicite:21]{index=21}.

📅 Recovery & Follow-Up

  • Surgical cases: Monitor incision for redness, swelling, discharge; limited activity until healed :contentReference[oaicite:22]{index=22}.
  • Watch & Wait: Recheck every 3–6 months; biopsy if changes occur :contentReference[oaicite:23]{index=23}.
  • Infiltrative/recurrent tumors: May require advanced imaging, specialist referral, and further treatment :contentReference[oaicite:24]{index=24}.

📝 Prognosis

  • Simple lipomas have an excellent prognosis—benign, non-cancerous, and rarely bothersome :contentReference[oaicite:25]{index=25}.
  • Surgical removal is effective, with low recurrence risk unless infiltrative :contentReference[oaicite:26]{index=26}.
  • Infiltrative lipomas and liposarcomas may recur and require rigorous management :contentReference[oaicite:27]{index=27}.

🏡 Home Care & Prevention

  • Check your cat regularly for new lumps during grooming sessions :contentReference[oaicite:28]{index=28}.
  • Maintain regular vet wellness exams to catch changes early.
  • Keep cats fit and active—while weight doesn't cause lipomas, healthy lifestyle supports overall wellness :contentReference[oaicite:29]{index=29}.
  • Use calming aids like Woopf & Purrz to reduce stress, which supports immune health.
  • Use the Ask A Vet app for guidance between visits.

📊 Quick Reference Table

Aspect Details
Definition Benign fatty lump under the skin
Cause Unknown—likely genetic; Siamese males at higher risk
Signs Soft, movable, non-painful lump
Diagnosis FNA ± biopsy; occasional imaging/labs
Treatment Monitor or surgical removal; steroid or radiation in select cases
Prognosis Excellent for simple lipomas; depends on type if infiltrative
Prevention Wellness exams, grooming checks, healthy lifestyle

🐾 Cat lipomas are usually harmless, but proper diagnosis and monitoring ensure your feline stays comfortable and healthy. For expert advice anytime, rely on Ask A Vet, and support your cat’s well-being with calming Woopf & Purrz essentials. ❤️

📢 Always follow your veterinarian’s recommendations for managing lumps or growths.

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