Thompson Elizabeth, Fauber Amy E, Pool Roy R
From the Department of Veterinary Clinical Sciences (A.E.F.), College of Veterinary Medicine, Purdue University, West Lafayette, IN (E.T.); and the Department of Veterinary Pathobiology, College of Veterinary Medicine, Texas A&M University, College Station, TX (R.R.P.).
J Am Anim Hosp Assoc. 2016 Sep-Oct;52(5):312-8. doi: 10.5326/JAAHA-MS-6349. Epub 2016 Aug 3.
Two cats, both over 10 yr old, were presented for evaluation of non-painful bony proliferations on the appendicular skeleton. These proliferations were identifiable via palpation. Radiographs showed a smooth, proliferative bony lesion of the distal femur (case 1) and tarsus (case 2) with mild soft tissue swelling. Surgical debulking with incomplete resection was performed in each cat. Subsequent histopathology resulted in a diagnosis of periosteal chondrosarcoma (PC). Although both cats have experienced local recurrence, both are still alive more than 2.5 yr after mass debulking. Periosteal chondrosarcoma is a differential diagnosis in proliferative cortical bony lesions near an articular surface in older cats. Partial resection of these masses can lead to an excellent quality of life, and proper diagnosis can avoid amputation or even euthanasia.
两只均超过10岁的猫因评估附肢骨骼上无痛性骨增生而就诊。这些增生可通过触诊识别。X线片显示，股骨远端（病例1）和跗骨（病例2）有光滑的增生性骨病变，伴有轻度软组织肿胀。对每只猫进行了手术减瘤及不完全切除。随后的组织病理学诊断为骨膜软骨肉瘤（PC）。尽管两只猫均出现了局部复发，但在肿物减瘤后均存活超过2.5年。骨膜软骨肉瘤是老年猫关节面附近增生性皮质骨病变的鉴别诊断之一。部分切除这些肿物可带来良好的生活质量，正确诊断可避免截肢甚至安乐死。
