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Animal Osteosarcoma Treatment Bronx NY

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.

Riverside Animal Clinic
(917) 383-2895
801 W 187th St
New York, NY
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Monday 9:00 AM - 7:00 PM
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Fort Lee Animal Clinic
(201) 754-8997
1580 Lemoine Avenue
Fort Lee, NJ
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For localvets customers only: Get 20% discount for services during your first visit including; surgery, vaccination, microchip, dental
(excludes medications, food and otc)
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Monday 9:00 AM - 7:00 PM
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Animal Microchipping, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Surgery, Veterinary Vaccinations

36th Street Animal Clinic
(347) 554-7541
21-75 36th Street
Astoria, NY
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Monday 12:00 PM - 7:00 PM
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Animal Flea Control, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery, Veterinary Vaccinations

At Home Veterinary
(646) 626-4312
Housecalls Only
Manhattan, NY
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Monday 10:00 AM - 8:00 PM
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Sunday Closed
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Animal Flea Control, Animal Microchipping, Emergency Veterinary Clinic, Holistic Veterinary Medicine, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Docking, Veterinary Euthanasia, Veterinary House Calls, Veterinary Medical Specialties, Veterinary Surgery

Animal Paradise Hospital
(201) 482-5518
670 Anderson Ave
Cliffside Park, NJ
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Monday 8:00 AM - 8:00 PM
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Wednesday 8:00 AM - 8:00 PM
Thursday 8:00 AM - 8:00 PM
Friday 8:00 AM - 8:00 PM
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Sunday 10:00 AM - 5:00 PM
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Animal Grooming, Animal Microchipping, Bird Vet, Declawing, Exotic Animal Vet, Holistic Veterinary Medicine, Reptile Vet, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary Medical Specialties, Veterinary Surgery

Edgewater Animal Hospital
(201) 292-4839
18 Hilliard Ave
Edgewater, NJ
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Monday 8:00 AM - 6:00 PM
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Animal Boarding, Animal Microchipping, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary House Calls, Veterinary Surgery, Veterinary Vaccinations

Animal General
(201) 402-6345
725 River Rd
Edgewater, NJ
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Monday 9:00 AM - 8:00 PM
Tuesday 9:00 AM - 8:00 PM
Wednesday 9:00 AM - 8:00 PM
Thursday 9:00 AM - 8:00 PM
Friday 9:00 AM - 6:00 PM
Saturday 9:00 AM - 1:00 PM
Sunday Closed
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Animal Boarding, Animal Daycare, Animal Flea Control, Animal Grooming, Animal Microchipping, Declawing, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary House Calls, Veterinary Medical Specialties, Veterinary Surgery

Cats Exclusive Veterinary Hospital
(201) 402-6228
742 Bergen Blvd
Ridgefield, NJ
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Monday 8:00 AM - 8:00 PM
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Friday 8:00 AM - 6:00 PM
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Sunday Closed
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Animal Boarding, Animal Daycare, Animal Flea Control, Animal Grooming, Animal Microchipping, Declawing, Holistic Veterinary Medicine, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary House Calls, Veterinary Surgery

Upper East Veterinary Center
(646) 571-8984
1435 Lexington Avenue
New York, NY
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Monday 10:00 AM - 7:00 PM
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Wednesday 10:00 AM - 7:00 PM
Thursday 9:00 AM - 6:00 PM
Friday 9:00 AM - 6:00 PM
Saturday 10:00 AM - 4:00 PM
Sunday Closed
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Animal Flea Control, Animal Microchipping, Emergency Veterinary Clinic, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary House Calls, Veterinary Surgery, Veterinary Vaccinations

Kalvig & Shorter Veterinary Associates
(917) 310-2540
227 E 84th St
New York, NY
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Monday 8:00 AM - 11:00 PM
Tuesday 8:00 AM - 11:00 PM
Wednesday 8:00 AM - 11:00 PM
Thursday 8:00 AM - 11:00 PM
Friday 8:00 AM - 11:00 PM
Saturday 8:00 AM - 11:00 PM
Sunday 8:00 AM - 11:00 PM
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Animal Boarding, Animal Daycare, Animal Flea Control, Animal Microchipping, Declawing, Emergency Veterinary Clinic, Holistic Veterinary Medicine, Small Animal Vet, Spaying/Neutering, Veterinarians, Veterinary Dentistry, Veterinary Euthanasia, Veterinary House Calls, 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...

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