Sarcoidosis

Thomas Hartman

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Imaging description Pulmonary sarcoidosis is characterized by nodules in a perilymphatic distribution on CT imaging [1–3]. A perilymphatic distribution indicates that the findings are seen along the bronchovascular bundles, the interlobular septa, and along the pleural surfaces [1] (Figures 10.1–10.4). In sarcoidosis, the nodules tend to have a perihilar predominance as well. The nodules may coalesce to form conglomerate masses which result in architectural distortion of the lung. Adenopathy may also be present depending on the stage of the disease (Figure 10.4). Calcification is often present in the nodes and is often amorphous, but can rarely be peripheral (egg-shell). Areas of air trapping can be seen on expiratory imaging in the majority of cases [1]. Additional presentations of pulmonary sarcoidosis include consolidation, cavitation, and fibrosis, but these are less common. Importance Sarcoidosis is a systemic granulomatous disease of unknown etiology that commonly affects the lungs. It typically occurs in young adults, but can be seen in older individuals as well [3]. In the appropriate clinical setting, the imaging findings on CT can be diagnostic.

Original languageEnglish (US)
Title of host publicationPearls and Pitfalls in Thoracic Imaging
Subtitle of host publicationVariants and Other Difficult Diagnoses
PublisherCambridge University Press
Pages24-25
Number of pages2
Volume9780521119078
ISBN (Electronic)9780511977701
ISBN (Print)9780521119078
DOIs
StatePublished - Jan 1 2011

ASJC Scopus subject areas

  • Medicine(all)

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  • Cite this

    Hartman, T. (2011). Sarcoidosis. In Pearls and Pitfalls in Thoracic Imaging: Variants and Other Difficult Diagnoses (Vol. 9780521119078, pp. 24-25). Cambridge University Press. https://doi.org/10.1017/CBO9780511977701.011