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Letters to the Editor

Diagnosis disagreement in “Pathology in Practice”

In a recent Pathology in Practice article,1 the authors describe a 1-year-old Quarter Horse colt with a 6-month history of nasal discharge and respiratory noise. Clinical and radiographic findings indicated a mass filling the left nasal passage and paranasal sinuses. The authors wrote that, at necropsy, a multilobulated bony mass was found and that histologic findings were consistent with a poorly productive, osteoblastic osteosarcoma. They also state that osteosarcomas “generally consist of proliferating lamellar bone and intratrabecular fatty and hematopoietic marrow.” However, I believe this description more accurately describes benign bone proliferation