|  | Ankylosing SpondylitisYoung male smoker from a nursing home with ankylosing
      spondylitis. He also had pulmonary Osteoarthropathy, making the consideration
      of cancer lung strong. His sputum was repeatedly negative for TB and
      cancer cells. This was before the days of fiberoptic bronchoscopy. You
      could
      not consider rigid bronchoscopy due to the stiff bent neck. Sequential
      films show spontaneous regression of disease. Bilateral non-specific
      upper lobe disease can be seen in this disease, and radiologically
      cannot be distinguished between TB or when unilateral with cancer. |