Peer-reviewed veterinary case report
Dog with aneurysmal bone cyst that turned into cancer after surgery
By Barnhart, Matthew D·Published in Veterinary surgery : VS·2002·MedVet Associates, United States·View original on PubMed →
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Original publication title: Malignant transformation of an aneurysmal bone cyst in a dog.
- Species:
- dog
Plain-English summary
A 5-year-old male Labrador retriever was diagnosed with a bone cyst in his right foreleg, which initially responded well to surgery and showed no signs of trouble for nearly three years. However, the cyst returned, and further surgery revealed that it had transformed into a type of bone cancer called chondrosarcoma. After the cancer recurred, the dog underwent an amputation of his front leg. Despite the challenges, the dog was able to maintain normal limb function for a significant time after the first surgery.
People also search for: dog bone cyst treatment · Labrador retriever cancer symptoms · chondrosarcoma in dogs · dog amputation recovery · dog leg surgery outcomes
Abstract
OBJECTIVE: To report malignant transformation of an aneurysmal bone cyst in a dog. STUDY DESIGN: Case report. SAMPLE POPULATION: Client-owned dog. RESULTS: A 5-year-old male Labrador retriever was diagnosed with an aneurysmal bone cyst of the distal aspect of the right ulna. Surgical curettage resulted in remission of clinical signs for 33 months. Because of recurrence of clinical signs, a distal ulnar ostectomy was performed. Histopathologic examination of the excised specimen revealed a moderately differentiated chondrosarcoma at the level of the bone cyst. Limb function was normal for 17 months until a subcutaneous mass, determined to be a chondrosarcoma, occurred at the level of the shoulder. A right forequarter amputation was performed. CONCLUSIONS: Aneurysmal bone cysts are benign but may be transformed into a malignancy after surgical manipulation. Complete surgical excision should be attempted where possible. In this case, distal ulnar ostectomy was an effective means of preserving limb function and preventing local recurrence of chondrosarcoma.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/12415520/