OBJECTIVE: The objective of our study was to describe the CT features of "hot @entity7332 lung" caused by exposure to @entity3069 complex (MAC) organisms in contaminated water. MATERIALS AND METHODS: Chart review was performed to identify all @entity1 with a histologic diagnosis of @entity55 and positive cultures for MAC between January 1, 1995, and July 1, 2004. Individuals identified who also had a hot @entity7332 were included in the study. Twelve @entity1 , seven females and five males with an average age of 50 years (range, 13-66 years), who had a CT scan were identified. The CT images were reviewed by two thoracic radiologists who assessed the images for the presence of any @entity66 , including nodules, areas of ground-glass attenuation, @entity231 , and air trapping, on expiratory images. When nodules, @entity231 , areas of ground-glass attenuation, or a combination of these findings was present, the reviewers visually determined the extent of involvement of the lungs using a scale of < 10%, 10-40%, or > 40%. They also recorded the distribution of the involvement both cephalocaudal and transaxial. Decisions were reached by consensus of the reviewers. RESULTS: Nodules were present in 10 (83%) of 12 @entity1 . In eight (80%) of 10 @entity1 , the nodules were diffuse with a centrilobular distribution. In the other two, the nodules were randomly distributed with an upper lung predominance. In five @entity1 the nodules showed areas of ground-glass attenuation, whereas in the other five the nodules were solid. Areas of ground-glass attenuation were present in eight (75%) of 12 @entity1 and were bilateral in all cases. The areas of ground-glass attenuation were diffuse in the cephalocaudal plane with a random distribution in the transaxial plane in seven (88%) of eight cases. In the remaining case, the areas of ground-glass attenuation had a lower lung predominance with a random distribution in the transaxial plane. Expiratory images showed evidence of air trapping in all seven cases for which these images were available. In one @entity1 , air trapping was the only abnormality identified. CONCLUSION: The CT findings in @entity1 with hot @entity7332 lung include areas of ground-glass attenuation, centrilobular nodules, and air trapping on expiratory images. These findings are similar to previously published findings of subacute @entity56 . Therefore, in cases in which CT findings suggest @entity56 , hot @entity7332 lung should also be a diagnostic consideration.

CT findings of @entity55 secondary to @entity3069 -intracellulare inhalation: "hot XXXX lung".

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity66 :: ('MESH:D004194', 'Disease') :: ['parenchymal abnormalities'] @entity231 :: ('MESH:D002386', 'Disease') :: ['reticular opacities'] @entity55 :: ('MESH:D011014', 'Disease') :: ['granulomatous pneumonitis'] @entity7332 :: ('7275', 'Gene') :: ['tub'] @entity56 :: ('MESH:D004342', 'Disease') :: ['hypersensitivity pneumonitis'] @entity3069 :: ('1764', 'Species') :: ['Mycobacterium avium']
@entity7332 :: (7275,Gene) :: ['tub']
