Lung cancer CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Kim-Son H. Nguyen, M.D., M.P.A., Beth Israel Deaconess Medical Center, Harvard Medical School, Boston MA, Cafer Zorkun, M.D., Ph.D. [2]

Overview

  1. Benefits of CT Scans in lung cancer patients[1]
    1. Providing anatomical detail to locate the tumor.
    2. Proximity to nearby structures
    3. Deciphering whether or not lymph nodes are enlarged in the mediastinum.

Unfortunately, research has shown that there are a number of false positives associated with CT scanning because a CT scan on its own can not determine malignancy. A recent study showed that approximately 40% of lung cancers that are considered malignant by CT scanning turn out to actually be benign after further testing. A positive result for a tumor using a CT scan is typically followed up with a biopsy for confirmation.

CT scan showing a cancerous tumor in the left lung


Images courtesy of RadsWiki

CT: Bronchoalveolar carcinoma


CT: Another patient with bronchoalveolar carcinoma


CT: Another patient with bronchoalveolar carcinoma


References

  1. Gerard A. Silvestri, Lynn T. Tanoue, Mitchell L. Margolis, John Barker, Frank Detterbeck.11/30/11.The Noninvasive Staging of Non Small-cell Lung Cancer. Chestpubs. http://chestjournal.chestpubs.org/content/123/1_suppl/147S.full/

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