Birefringent Crystals in a Lung Cavity

A 47-year-old black man with a history of diabetes mellitus underwent kidney-pancreas transplantation in 1990. In February 2004, he received a diagnosis of Mycobacaerium kansasii infection with small cavitary lesions in the middle zone of the left lung. He was undergoing treatment for this infection when he presented to the hospital in May 2004 with complaints of nonproductive cough and shortness of breath lasting 1 week. He had pleuritic chest pain on the right side, and he had no ILM ... ..4. :. . . .