Hypertrophic osteopathy secondary to pulmonary sarcoma in a cat

Authors: Grierson J.M.; Burton C.A.¹; Brearley M.J.¹

Source: Veterinary and Comparative Oncology, Volume 1, Number 4, December 2003 , pp. 227-231(5)

Publisher: Blackwell Publishing

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Abstract:

A case of hypertrophic osteopathy secondary to a pulmonary spindle cell sarcoma is described. The 9-year-old male cat presented with a 1-month history of decreased appetite, decreased activity and progressive lameness with swelling and pain of all four limbs. Thoracic radiographs showed a soft tissue opaque mass in the left caudal lung lobe. Radiographs of all limbs showed extensive periosteal new bone formation of uniform opacity demonstrating a ‘palisading’ pattern. The lung mass was removed at exploratory thoracotomy; histopathological examination diagnosed a low-grade spindle cell sarcoma. Prior to surgery, the cat had a non-specific conjunctivitis that resolved spontaneously following lobectomy raising the possibility of a paraneoplastic association. The lameness also resolved; six months after surgery, the periosteal palisading of new bone on the long bones had remodelled, and there was no evidence of pulmonary metastases.

Document Type: Research article

DOI: 10.1111/j.1476-5810.2003.00030.x

Affiliations: 1: Davies White Veterinary Specialists, Manor Farm Business Park, Higham Gobion, Hertfordshire, UK

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