These interactive cases provide an opportunity for analyzing and evaluating actual patient scenarios. Cases outline the patient history, specific information on pulmonary disease progression, and are supplemented with radiographs, PFTs, serology, and biopsy results. Paul W. Noble, MD and Alison G. Wilcox, MD, FSCCT consider a woman presenting with dry cough and dyspnea. They show how radiology and clinical factors contribute to an accurate diagnosis.