Subscribe to VETERINARY PRACTICE NEWS   SUBSCRIBER SERVICES   
VPN Logo   
 Home   About Us   Contact Us
 

Animal Osteosarcoma Treatment Sumner WA

Muffin, an 8-year-old female Rottie, presents with a two-week history of right front leg lameness. The physical exam is within normal limits except for a firm mass on the distal forearm, which is painful on palpation. You suspect a tumor.

South Hill Veterinary Clinic
(253) 693-8995
620 39th Ave. SW
Puyallup, WA
Hours
Monday 7:00 AM - 8:00 PM
Tuesday 7:00 AM - 8:00 PM
Wednesday 7:00 AM - 8:00 PM
Thursday 7:00 AM - 8:00 PM
Friday 7:00 AM - 8:00 PM
Saturday 8:00 AM - 5:00 PM
Sunday Closed
Services
Animal Flea Control, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Surgery, Veterinary Vaccinations

Green River Veterinary Hospital
(253) 220-7993
4212 Auburn Way North
Auburn, WA
Hours
Monday 8:00 AM - 8:00 PM
Tuesday 8:00 AM - 6:00 PM
Wednesday 8:00 AM - 8:00 PM
Thursday 8:00 AM - 6:00 PM
Friday 8:00 AM - 6:00 PM
Saturday 9:00 AM - 12:00 PM
Sunday Closed
Services
Animal Flea Control, Animal Microchipping, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Surgery, Veterinary Vaccinations

Crestwood Animal Hospital
(253) 235-9718
28822 Pacific Hwy S
Federal Way, WA
Promotion
Receive a complimentary exam for your pet's first visit with us. Call our office to schedule your appointment. We are excited to meet you!
Hours
Monday 9:00 AM - 6:00 PM
Tuesday 9:00 AM - 6:00 PM
Wednesday 9:00 AM - 7:00 PM
Thursday 9:00 AM - 6:00 PM
Friday 9:00 AM - 6:00 PM
Saturday 9:00 AM - 2:00 PM
Sunday Closed
Services
Animal Boarding, Animal Flea Control, Animal Microchipping, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Surgery, Veterinary Vaccinations

VCA Parkway Animal Hospital
(253) 254-7113
14107 Pacific Avenue
Tacoma , WA
Hours
Monday 8:00 AM - 7:30 PM
Tuesday 8:00 AM - 7:30 PM
Wednesday 8:00 AM - 6:00 PM
Thursday 8:00 AM - 6:00 PM
Friday 8:30 AM - 7:30 PM
Saturday 8:00 AM - 3:00 PM
Sunday Closed
Services
Animal Flea Control, Animal Grooming, Animal Microchipping, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Chambers Creek Veterinary Hospital
(253) 353-7456
7210 Bridgeport Way W
Lakewood, WA
Hours
Monday 7:00 AM - 6:30 PM
Tuesday 7:00 AM - 6:30 PM
Wednesday 7:00 AM - 6:30 PM
Thursday 7:00 AM - 6:30 PM
Friday 7:00 AM - 6:30 PM
Saturday 8:00 AM - 4:00 PM
Sunday Closed
Services
Animal Boarding, Animal Daycare, Animal Flea Control, Animal Grooming, Animal Microchipping, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Firgrove Veterinary Clinic
(253) 268-5444
14816 Meridian E
Puyallup, WA
Hours
Monday 7:00 AM - 8:00 PM
Tuesday 7:00 AM - 8:00 PM
Wednesday 7:00 AM - 6:00 PM
Thursday 7:00 AM - 6:00 PM
Friday 7:00 AM - 8:00 PM
Saturday 8:00 AM - 5:00 PM
Sunday 8:00 AM - 5:00 PM
Services
Animal Flea Control, Animal Microchipping, Declawing, Holistic Veterinary Medicine, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Sacajawea Healthcare for Pets
(253) 293-5945
1530 S Dash Point Rd
Federal Way, WA
Hours
Monday 7:30 AM - 8:00 PM
Tuesday 7:30 AM - 6:00 PM
Wednesday 7:30 AM - 8:00 PM
Thursday 7:30 AM - 6:00 PM
Friday 7:30 AM - 6:00 PM
Saturday 8:30 AM - 2:00 PM
Sunday Closed
Services
Animal Flea Control, Animal Microchipping, Bird Vet, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Surgery

VCA Pacific Avenue South Animal Hospital
(253) 655-7948
18715 Pacific Avenue
Spanaway , WA
Hours
Monday 7:00 AM - 8:00 PM
Tuesday 7:00 AM - 8:00 PM
Wednesday 7:00 AM - 8:00 PM
Thursday 7:00 AM - 8:00 PM
Friday 7:00 AM - 6:00 PM
Saturday 7:00 AM - 6:00 PM
Sunday Closed
Services
Animal Boarding, Animal Daycare, Animal Flea Control, Animal Grooming, Animal Microchipping, Exotic Animal Vet, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery, Veterinary Vaccinations

VCA Pacific Avenue Animal Hospital
(253) 254-7528
10234 Pacific Ave
Tacoma, WA
Hours
Monday 24 Hours
Tuesday 24 Hours
Wednesday 24 Hours
Thursday 24 Hours
Friday 24 Hours
Saturday 24 Hours
Sunday 24 Hours
Services
24-Hour Vet, Animal Boarding, Animal Daycare, Animal Flea Control, Animal Grooming, Animal Microchipping, Exotic Animal Vet, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Animal Clinic of Benson - Dr. Raja Velu
(253) 234-1863
10700 SE 208th St Suite 204
Kent, WA
Hours
Monday 9:00 AM - 7:00 PM
Tuesday 9:00 AM - 7:00 PM
Wednesday 9:00 AM - 7:00 PM
Thursday 9:00 AM - 7:00 PM
Friday 9:00 AM - 7:00 PM
Saturday 9:00 AM - 5:00 PM
Sunday 9:00 AM - 4:00 PM
Services
Animal Boarding, Animal Daycare, Animal Flea Control, Animal Microchipping, Declawing, Holistic Veterinary Medicine, Large Animal Vet, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Managing Animals with Osteosarcoma

Muffin, an 8-year-old female Rottie, presents with a two-week history of right front leg lameness. The physical exam is within normal limits except for a firm mass on the distal forearm, which is painful on palpation. You suspect a tumor.

How would you approach this case? What are your rule-outs?

A: A suspicious lesion in the right radius of Muffin, an 8-year-old female Rottie. Photo by Dr. Phil Zeltzman
Radiographs of the distal radius and ulna are the next logical step. They reveal a lytic and proliferative lesion with soft-tissue swelling (see photo A). Malignant long bone tumors include osteosarcoma (about 85 percent of the time), chondrosarcoma (5 percent), fibrosarcoma (5 percent) and hemangiosarcoma (5 percent). There is a small chance of a metastatic lesion. If this were a benign lesion, it could be an osteoma, chondroma or bone cyst. It also could be osteomyelitis from a bacterial or fungal infection.

Euthanasia offered as a sole treatment option is not ethically acceptable and medically recommended in 2010. Primary bone cancer is a treatable condition that requires a thorough work-up before irreversible decisions are made.

A standard work-up should include:

  • CBC and chemistry. An increased alkaline phosphatase may be correlated with a poorer prognosis in cases of osteosarcoma. (See JAVMA, 1998, Vol. 213.)
  • Three views of the thorax, to detect visible metastasis (macro-metastasis).
  • A bone biopsy.
  • Fungal and bacterial cultures of the bone.

The timing of bone biopsy is debatable. If the clinician is convinced that the lesion is consistent with osteosarcoma, or if the client has financial constraints, an open discussion should take place about the pros and cons of performing an amputation without the benefit of a prior biopsy.

If amputation is elected, then a biopsy and cultures should be harvested afterward to confirm the suspicion. This is a huge leap of faith for the client, so it is important to document what was discussed and what the client chose.

How It’s Done

Should a biopsy be preferred first, then the surgery site is shaved, scrubbed and draped. A stab incision is performed in the skin. A hemostat or periosteal elevator is used to approach the bone. Several cores of bone are sampled with a Jamshidi needle (see photo B) or a Michelle trephine.

It is prudent to use the smallest needle possible to decrease the chances of a pathological fracture of the bone. This is why most surgeons prefer Jamshidi needles. They are available from a variety of manufacturers. A 4-inch, 8 to 11 G needle is often used.

The needle and its sharp stylet are placed on the bone and a small indentation is made. The stylet is removed, and cores of bone are harvested using a rotational motion in various directions. The first cortex and the entire medullary cavity are biopsied.

Maintain Bone’s Strength

B: Bone biopsy with a Jamshidi needle in a 4-year-old Labrador with osteo...

Copyright 2009 BowTie Inc.

Click here to read the rest of this article from Veterinary Practice News