Tree in bud sign – describes the CT chest appearance of multiple…

Tree in bud sign – describes the CT chest appearance of multiple centrilobular nodules that are connected by branching opacified bronchioles. Although initially described in patients with endobronchial tuberculosis, it is now recognised in a large number of conditions ranging from small airways infections like mycobacterium avium complex, to connective tissue diseases like rheumatoid arthritis, to neoplastic conditions like bronchioloalveolar cell carcinoma.

from our tumblr blog: http://radiologysigns.tumblr.com/post/26951480530

http://radiologysigns.tumblr.com/

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