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Cancer Surgery for Dogs Anthony NM

The best time to obtain clean margins during surgical excision of a malignant tumor is the first time. The most aggressive, i.e. mitotically active, cells are not located in the main, visible or palpable mass, but within its "legs" or tentacles.

East El Paso Animal Hospital
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Northeast Veterinary Clinic
(915) 755-2231
9405 Dyer St
El Paso, TX

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Banfield, the Pet Hospital
(915) 603-5659
655 Sunland Park Drive
El Paso, TX
 
Banfield The Pet Hospital
(915) 832-0700
600 Belvidere St
EI Paso, TX
 
El Paso Veterinary Medical Association
(915) 833-1414
900 Country Club Rd
El Paso, TX

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Amy Shumaker, DVM, DACVD
(877) 604-8366
1220 Airway Blvd
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Skyline Veterinary Hospital
(915) 755-7647
4424 Titanic Ave
El Paso, TX

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(915) 755-5653
4404 Edgar Park Ave Ste A
El Paso, TX

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7096 Westwind Dr
El Paso, TX

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4910 Crossroads Dr
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Cancer Surgery Never as Good as First Time

Nasal fibrosarcoma in an 8-year-old German shepherd. Photo courtesy of Dr. Phil Zeltzman
Music critics claim that Sade’s song “Never as Good as the First Time” applies to personal relationships. We beg to differ. She was clearly referring to cancer surgery.

The best time to obtain clean margins during surgical excision of a malignant tumor is the first time. The most aggressive, i.e. mitotically active, cells are not located in the main, visible or palpable mass, but within its “legs” or tentacles. This is why it is so important to obtain clean margins the first time around.

Dirty margins will require radiation therapy, chemotherapy or a more aggressive excision to prevent a recurrence. Re-excision is always more complicated because it is difficult, if not impossible, to know how invasive we should be. The original tumor may have seeded cells in multiple tissue planes during the first attempt.

One easy way to think of the cancerous mass during the first excision is to consider it as grossly infected (read: covered in pus). Therefore, it shouldn’t come in contact with healthy tissues. Gloves, instruments and drapes should be changed before closing the surgical site.

It also is important to remove tumors en bloc. In other words, the main mass should not be shelled out with the intention of removing more tissue afterward.

Mast cell tumor on the hock of a 6-year-old boxer. Photo courtesy of Dr. Phil Zeltzman
The deep margin ofte...

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