Today’s case is a 6-year-old male neutered Labrador Retriever. Split nail for 4 months on right thoracic limb. Recently developed skin nodule on digit. What are your differentials?
Teaching and learning about veterinary diagnostic imaging.
Today’s case is a 6-year-old male neutered Labrador Retriever. Split nail for 4 months on right thoracic limb. Recently developed skin nodule on digit. What are your differentials?
There is multifocal lysis of the third phalanx of the second digit of the right thoracic limb. Soft tissue swelling surrounds this region and the nail is absent. The remainder of the metacarpal bones and phalanges are normal.
Aggressive osseous lesion of the third phalanx of the second digit.
Subungual melanoma
Bone lysis of the digit is more commonly caused by malignant neoplasia (83%) than osteomyelitis (17%). Dogs with squamous cell carcinoma had bone lysis (80%) more often than dogs with melanoma (5%).
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