Epistemis

Pulmonary tuberculosis

Pathological anatomy · Respiratory

Cavitation in tuberculosis is the result of necrosis of lung tissue that is then extruded through a communicating bronchus thus forming an air-filled cavity. In this specimen the fungus ball exhibits areas of retraction from the wall of the cavity resulting in the presence of air between the fungus ball and cavity wall; this forms the basis for the diagnostic "air-crescent sign" seen in imaging st
Cavitation in tuberculosis is the result of necrosis of lung tissue that is then extruded through a communicating bronchus thus forming an air-filled cavity. In this specimen the…

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PreviousLung carcinoma (2 of 2)
Category
Respiratory
Difficulty
advanced
Type
Macroscopic

Origin: Yale Rosen from USA · CC BY-SA 2.0 · Wikimedia Commons · License CC BY-SA 2.0

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