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Case 66 - Pleural lipoma

Published online by Cambridge University Press:  07 October 2011

By
Rebecca Lindell
Edited by
Thomas Hartman
Thomas Hartman
Affiliation:
Mayo Clinic, Rochester
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Summary

Imaging description

Pleural lipomas are benign, rare, and asymptomatic tumors [1]. The pleural location and fat content of a pleural lipoma is not always identifiable on chest radiographs [1]. CT will show a well-defined, homogeneous, fat attenuation mass (HU less than –50) with obtuse margins along the pleura, which displaces adjacent pulmonary parenchyma [1, 2] [Figures 66.1–66.4]. Pleural lipomas are hyperintense on T1-weighted images and moderately intense on T2-weighted images on MRI [1].

Importance

A pleural lipoma is usually inconsequential but may present a diagnostic dilemma on radiographs and, rarely, CT as they must be distinguished from other causes of a nodule or mass.

Type
Chapter
Information
Pearls and Pitfalls in Thoracic Imaging
Variants and Other Difficult Diagnoses
 , pp. 176 - 177
Publisher: Cambridge University Press
Print publication year: 2011

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References

Qureshi, NRGleeson, FV.Imaging of pleural diseaseClin Chest Med 2006 27 193CrossRefGoogle ScholarPubMed
Muller, NL.Imaging of the pleuraRadiology 1993 186 297CrossRefGoogle ScholarPubMed
Gaerte, SCMeyer, CAWiner-Muram, HTTarver, RDConces, DJ.Fat-containing lesions of the chestRadiographics 2002 22 S61CrossRefGoogle ScholarPubMed

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