Pulmonary Nodules: growth rate assessment in patients by using serial CT and three-dimensional volumetry.

Purpose: To determine the precision of a three-dimensional (3D) method for measuring the growth rate of solid and subsolid nodules and its ability to detect abnormal growth rates.

Materials And Methods: This study was approved by the Institutional Research Board and was HIPAA compliant. Informed consent was waived.

Immune-reconstitution syndrome related to atypical mycobacterial infection in AIDS.

The immune-reconstitution syndrome is a paradoxical inflammatory response to a preexisting or a coexisting disease, after the initiation of highly active antiretroviral therapy for the human immunodeficiency virus. Infrequently described, the radiographic and computed tomographic findings of the immune-reconstitution syndrome, which is related to the Mycobacterium avium-intracellulare infection and to highly active antiretroviral therapy, are presented in 2 patients. Homogeneous mediastinal and hilar lymphadenopathy were present in both individuals, with one having a large mass accompanied by small nodules.