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  • Connective Tissue Tumors
  • Low-grade fibrosarcoma in muzzle, dog

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    Low-grade fibrosarcoma in muzzle, dog

    These classic tumors on the muzzle are confusing in that in the biopsy report "nodular fasciitis" seems benign and does not indicate their slowly expanding biological behavior. This tumor's locally infiltrative nature caused severe disfigurement and discomfort for this Golden Retriever as it continued to enlarge.

    Courtesy of Dr. Alice Villalobos.

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