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Veterinarian Technician April 2006 (Vol 27, No 4) Focus: Dermatology

Sharpen Your Clin Path Skills: "Hive-like Lesions on a Border Collie"

by Margi Sirois, EdD, MS, RVT, Elaine Anthony, MA, CVT

    Mr. Allen brings his 8-year-old intact female border collie, Paige, to your clinic for evaluation. He reports that Paige has an itchy rash on her side. The initial evaluation reveals a swollen, raised area surrounded by smaller hive-like lesions along the lateral thoracic area. The physical examination reveals no additional clinical signs.

    Blood is obtained for a complete blood cell count and chemistry panel, and fine-needle aspiration is conducted on the primary lesion. The fine-needle aspirate sample is prepared using a compression smear technique. No significant abnormalities are noted on the blood test results, but evaluation of the fine-needle aspirate smear reveals the presence of large round cells with deep purple granules in addition to numerous eosinophils. Dr. Darrell requests thoracic and abdominal radiographs and additional fine-needle aspiration of local lymph nodes. No additional abnormalities are identified on these tests. Dr. Darrell diagnoses a cutaneous mast cell tumor, and surgery is scheduled to remove the mass.

    Which of the images at left is most indicative of this case? Click here for the answer .

    What unique features are present in the other images? Click here for answer .

    NEXT: Tech Life (April 2006)

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