Learning objectives
To review the imaging features of a variety of unusual primary lung tumors (UPLT).
Background
Computed tomography (CT) and magnetic resonance imaging (MRI) helps to identify the location and characteristics of the lung lesions and shows the associated findings of disease.
Although it is difficult to identify UPLT on the basis of imaging findings alone,
cross-sectional imaging may play an important role in the diagnostic evaluation of these unusual tumors [1-3].
Imaging findings OR procedure details
Solitary Fibrous Tumor(SFT)– Usually manifests as a round or oval shaped,
well-defined nodule or mass.
CT findings would not be different from those in SFT of the pleura (Fig.
1).
Inflammatory Myofibroblastic Tumor (Plasma Cell Granuloma)– Usually manifests as a solitary,
slow-growing mass with a lobulated or spiculated border.
Calcification or cavitation are rare (Fig.
2).
Lymphoma– Usually manifests as a well-delineated soft-tissue mass.
Less commonly present as multiple nodules,
diffuse infiltrates along the bronchovascular bundles and interlobular septa,
and extensive lobar infiltrates mimicking pneumonia...
Conclusion
Although most lung tumors do not show typical imaging findings,
CT is useful to define the location and extent of these tumors,
and it also narrows the differential diagnosis of these tumors.
References
Giménez A,
Franquet T,
Prats R,
Estrada P,
Villalba J,
Bagué S.
Unusual primary lung tumors: a radiologic-pathologic overview.
Radiographics.
2002;22(3):601-19.
Landini N,
Milanese G,
Zambrini E,
et al.
Computed tomography - histology correlations of unusual lung tumors.
Pathologica.
2016;108(3):110-119.
Bhatia K,
Ellis S.
Unusual lung tumours: an illustrated review of CT features suggestive of this diagnosis.
Cancer Imaging.
2006;6:72-82.
Personal Information
Furkan UFUK,
M.D.
Assistant Professor of Radiology
Pamukkale University,
School of Medicine
Denizli / Turkey
[email protected]