UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0767

Question:
A 22 year old man compains of back pain which disturbs sleep and is associated with morning stiffness and stiffness. Symptoms improve with exercise. A pelvic x-ray reveals bilaterial sacroiliitis . A chest x-ray reveals fibriotic changes in the upper lung. He is found to be HLA-B27 postitive but is seronegative for RF and ANA. These features suggest:

a) Ankylosing Spondylitis
b) Scheuermann Disease
c) Enteropathic Arthritis
d) Spondylolysis
e) spondylolisthesis