Caudolateral curvilinear osteophyte (CCO), an osteophyte at the site of joint capsule attachment on the caudal aspect of the femoral neck, has been advocated as a radiographic criterion for coxofemoral subluxation. The correlation between the presence of CCO on radiographs (radiographic-CCO), the size of the CCO (CCO index) on three-dimensional computed tomographic (CT) images, and hip evaluation using transverse CT images was assessed in 22 Border Collies. CCOs were detected on the radiographs and CT images of 32% and 100% femurs, respectively. The CCO index correlated significantly with radiographic-CCO, but a large CCO index did not necessarily imply that the CCO was visible on radiographs. Hence, radiographic-CCO findings should be used cautiously in hip evaluation of Border Collies.
Animals ; Dog Diseases/*physiopathology/radiography ; Dogs ; Female ; Hip Dysplasia, Canine/*physiopathology/radiography ; Image Processing, Computer-Assisted ; Male ; Osteophyte/*physiopathology/radiography ; Tomography, X-Ray Computed/veterinary

Ankylosing spondylitis (AS) is a chronic inflammatory rheumatological disease affecting the axial skeleton with various extra-articular complications. Dysphagia due to a giant anterior osteophyte of the cervical spine in AS is extremely rare. We present a 48-year-old male with AS suffering from progressive dysphagia to soft foods and liquids. Esophagography showed an anterior osteophyte at C5-C6 resulting in esophageal compression. The patient refused surgical resection of the osteophyte and received conservative therapy. However, after 6 months there was no improvement in dysphagia. This case illustrates that a large cervical osteophyte may be the cause of dysphagia in patients with AS and should be included in the diagnostic workup in early stages of the disease.
Cervical Vertebrae/*pathology/radiography ; Deglutition ; Deglutition Disorders/diagnosis/*etiology/physiopathology/therapy ; Esophageal Stenosis/diagnosis/*etiology/physiopathology/therapy ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Osteophyte/diagnosis/*etiology/therapy ; Spondylitis, Ankylosing/*complications/diagnosis/therapy ; Tomography, X-Ray Computed ; Treatment Outcome