Arthritis
Allergies
Anxiety
Ear Infections
Flea & Tick
Heart Problems
Heartworm
Hot Spots
Hyperthyroidism
Hypothyroidism
Incontinence
Shedding Control
Skin Irritation
Tear Stains
Urinary Infections
Vomiting/Diarrhea
Weight Management
Worms
See All A-Z
Arthritis
Allergies
Anxiety
Ear Infections
Flea & Tick
Heart Problems
Heartworm
Hot Spots
Hyperthyroidism
Hypothyroidism
Incontinence
Shedding Control
Skin Irritation
Tear Stains
Urinary Infections
Vomiting/Diarrhea
Weight Management
Worms
See All A-Z
Breath Fresheners
Chews & Treats
Rinses & Water Additives
Toothpaste & Toothbrushes
Ear Cleansers
Ear Infection Remedies
Ear Mite Treatments
Antibiotic Anti-Infective
Artificial Tears & Lubricants
Eye Inflammation
Glaucoma
Tear Stain Removers
Flea & Tick Prevention
Heartworm & Flea Control
Home Flea & Tick Treatment
Oral Flea Treatments
Pet Flea & Tick Control
Tick & Flea Collars
Canned Pet Food
Dry Pet Food
Raw Pet Food
Adult Pet Food
Hypoallergenic
Glucose Balance
Digestive Health & Support
Grain Free
Joint Support
Kitten Food
Puppy Food
Senior Pet Food
Skin Support
Small Breed Dog Food
Weight Loss & Management
Treats
Pet Food Storage
Joint Pain
Joint Supplements
Lifting Harness
Orthopedic Beds
Steps & Ramps for Mobility
Allergy Relief
Antibiotics
Antifungal
Anxiety
Asthma
Compound Medications
Cough Relief
Digestive Health & Enzymes
Diuretics
High Blood Pressure
Hormonal Endocrine
Insulin & Glucose Balance
Motion Sickness & Nausea
Pain
Seizure Disorder
Thyroid
Urinary Tract & Kidneys
Wormers
Beds
Bowls & Elevated Feeders
Carriers
Car Seats & Pet Carriers
Cat Litter
Cesar Millan Training Aids
Crates & Kennels
Drinking Fountains
Elizabethan Collars
First Aid
Furniture
Furniture Protectors
Gates
Grooming Tools
Holiday
Leashes & Harnesses
Life Jackets
Outdoor Cat Pens
Pet Food Storage
Shampoos
Stain Removers
Steps & Ramps
Strollers
Toys
Training Aids
Treats
Wireless Dog Fences
Antibacterials
First Aid
Fish Oils & Omega 3
Fly Control
Grooming Tools
Hairball Remedies
Itch Relief
Ringworm Treatments
Shampoos
Shedding Control
Skin Care Supplements
Skin Medications
Antioxidants
Calcium
Dietary
Digestive Enzymes
Fish Oils & Omega 3
Liver Support
Multivitamins
Potassium
Senior Support
Whole Food Supplements
   
 
Pet Health Topics
 

Sign Up for Pet Health Articles & More

Email:

 
 
Share on Facebook Share on Twitter

Bone Cancer (Osteosarcoma) in Dogs

  
 

What is Osteosarcoma?

Osteosarcoma in dogs is a malignant cancer of the bone that most commonly affects large and giant breeds such as Golden Retrievers, German Shepherds, Dobermans, Great Danes, Rottweilers, and Saint Bernards. It is most often seen in middle-aged to older dogs and most commonly involves bones of the limb. Other possible locations include the jaw, ribs, nasal cavity, and spine.

Risk Factors That Predispose Dogs to Osteosarcoma

While the tendency to develop bone cancer is likely genetic, other hormonal and environmental factors are believed to potentially predispose dogs to develop bone cancer. Increasing weight and height are believed to be risk factors in some dogs. Recent epidemiological studies have shown that sex hormones may have a protective effect on the future development of bone cancer. Dogs that are spayed and neutered before sexual maturity seem to have an increased risk of future bone cancer.

  
Large and giant breed dogs are most commonly stricken by bone cancer (osteosarcoma). If bone cancer spreads to your dog's lungs, prognosis is not good.
  
Key Facts of Bone Cancer (Osteosarcoma) in Dogs and Cats
  • Osteosarcoma is an aggressive, malignant bone cancer that most commonly affects large and giant breed middle-aged to older dogs.
  • Signs of osteosarcoma usually involve progressive lameness; local swelling and other clinical signs may also occur depending on the location of the cancer.
  • Limb amputation is most commonly used to enhance quality of life, however chemotherapy and/or radiation are also used in certain osteosarcoma cases.
  • Prognosis of osteosarcoma depends on whether the cancer has spread to the lungs or other areas.
  

 
 
  

 

Symptoms of Bone Cancer (Osteosarcoma) in Dogs

The most common clinical signs of dogs with bone cancer are a progressive painful lameness and swelling of the affected limb. While the lameness may be intermittent initially, it often gradually progresses over 1-2 months. With advanced cases, secondary fracture of the underlying bone is possible as well. Other symptoms depend on other areas of involvement and may include nasal discharge, difficulty eating and drinking, and neurological signs.

Diagnosis of Bone Cancer (Osteosarcoma) in Dogs

Physical exams and X-rays are most commonly used to make a tentative diagnosis of bone cancer, as most pets will present at an advanced stage with swelling and tenderness of the underlying bone, as well as having characteristic destructive bone changes apparent on X-rays. While history, physical exam, and X-rays often suggest a diagnosis of bone cancer, bone biopsy is the only way of truly confirming diagnosis, and differentiating primary bone tumors from other cancer types. Since bone cancer is often spread to the lungs, it is important to have a chest X-ray on any pet diagnosed with osteosarcoma. CT scans and/or MRIs also may be indicated depending on the primary location of the cancer.

  

 

Treatment for Bone Cancer (Osteosarcoma) in Dogs

The treatment of choice by veterinarians for most dogs with osteosarcoma of the leg is amputation of the affected limb, after which most dogs do function quite well. Adjunctive chemotherapy and/or radiation may also be given depending on the severity and progression of the cancer at time of diagnosis, and/or whether dog owners allow amputation. Because of the pain associated with this type of cancer, it is often important to treat and ideally prevent pain with drugs such as non-steroidal anti-inflammatory drugs (NSAIDs) such as Rimadyl or Previcox.

Prognosis for Dogs with Bone Cancer (Osteosarcoma)

There are several factors that will determine prognosis, including location of the cancer, and extent and/or spread of disease at time of diagnosis. Pets that have bone cancer that has spread to the lungs have a much poorer prognosis than pets with local osteosarcoma.

  

  
 
Vet Tip: When giving a prescription pain medication such as Tramadol, allow plenty of water for your dog to drink. - Michael Dym, VMD  
  

 
 
   
Help / Customer Service
My Account
PetMeds® Sites
PetMeds® Programs
Our 100% Guarantee
About Us
Contact Us
FAQs
PetMeds® Help
Privacy Policy
Printable Order Form
Site Map
Testimonials
Vet Directory
Request a Catalog

Home
Login
Email Preferences
Reorder
Easy refill
Track my order
My Account Page
My pet has passed away
PetMeds® Blog
PetHealth 101®
PetMeds® Charitable Causes
1-800-PetMeds® Careers
PetMeds® Investor Relations
pet meds
Pet Meds Photos
Pet Meds News
Pet Health Articles
Affiliate Program
Corporate Program
Shelter & Rescue Program
 
Join our Social Network
 
    PetMeds® on Facebook
    PetMeds® on Twitter
    PetMeds® on YouTube
    PetMeds® Google+
    PetMeds® LinkedIn
Copyright © 2014 PetMed Express, Inc. All Rights Reserved.
   
 
Vet-VIPPSVETERINARY-VERIFIED INTERNET PHARMACY PRACTICE SITES(CM) Online Veterinary Pharmacy Services
 
1800PetMeds.com has earned Veterinary-Verified Internet Pharmacy Practice Sites(CM) (Vet-VIPPS(CM)) accreditation through the National Association of Boards of Pharmacy® (NABP®).
Verisign Secured Click for the BBB Business Review of this Pharmacies in Pompano Beach FL