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What Is Your Diagnosis?

Sarah Pownder DVM1, Janean L. Fidel DVM, DACVR, DACVIM2, Travis C. Saveraid DVM3, Katherine L. Gailbreath DVM4, and Patrick R. Gavin DVM, PhD, DACVR5
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  • 1 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010.
  • | 2 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010.
  • | 3 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010.
  • | 4 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010.
  • | 5 Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-7010.
History

An 8-year-old castrated male Bouvier des Flandres was referred for evaluation of swelling in the mandibular region on the right side. No abnormalities were detected during a dental procedure performed 2 months earlier. A mass measuring 5 × 3 × 2cm3 was palpated at the angle of the right ramus of the mandible. No lesions were visible in the oral cavity.Microscopic examination of fine-needle aspirates obtained from the mandibular mass revealed abundant melanin granules in a sparse, undefined cellular environment. These findings were interpreted as malignant melanoma of the mandibular salivary gland or regional lymph nodes. No

History

An 8-year-old castrated male Bouvier des Flandres was referred for evaluation of swelling in the mandibular region on the right side. No abnormalities were detected during a dental procedure performed 2 months earlier. A mass measuring 5 × 3 × 2cm3 was palpated at the angle of the right ramus of the mandible. No lesions were visible in the oral cavity.Microscopic examination of fine-needle aspirates obtained from the mandibular mass revealed abundant melanin granules in a sparse, undefined cellular environment. These findings were interpreted as malignant melanoma of the mandibular salivary gland or regional lymph nodes. No

Contributor Notes

Dr. Pownder was a fourth-year veterinary student when this manuscript was submitted.

Address correspondence to Dr. Fidel.