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Tree-In-Bud Appearance-CT Sign

The tree-in-bud sign is a finding seen on thin-section computed tomographic  images of the lung . Peripheral, small, centrilobular, and well-defined nodules of soft-tissue attenuation are connected to linear, branching opacities that have more than one contiguous branching site, thus resembling a tree in bud. The tree-in-bud sign has primarily been used as a descriptive term for abnormalities found on CT scans of the lung in patients with endobronchial spread of Mycobacterium tuberculosis.

Tree-In-Bud Appearance-CT Sign Reviewed by Sumer Sethi on Saturday, January 22, 2011 Rating: 5

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