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Rare pulmonary tumors and carcinoma mimickers; experience from an interventional radiology unit with radiologic-pathologic correlation-A pictoral essay

Author(s):

Emre Ünal , Sevtap Arslan *, Gulnar Aghayeva , Yasin Sarıkaya , Türkmen Çiftçi , Sevgen Önder , Devrim Akıncı and Okan Akhan  

Abstract:


Background: Although imaging findings along with patients’ clinical history may give clue for the etiology of a pulmonary lesion, the differentiation of benign pulmonary lesions from lung cancer could be challenging.

Objective: The aim of this review article was to increase the awareness of the carcinoma mimicking lung lesions.

Methods: This paper was designed to illustrate rare pulmonary tumors and carcinoma mimickers with emphasis on radiologic-pathologic correlation. Pitfalls encountered on CT images and also false positivity of PET-CT scans were also presented.

Conclusion: Several benign pulmonary lesions may grow in size on follow-up and some may show pathologic FDG (18F-fluorodeoxyglucose) uptake, which makes them indistinguishable from lung carcinoma by imaging. In addition, some slow-growing malignant lesions, such as carcinoid, may be false-negative on PET/CT scans.

Keywords:

Lung cancer; CT; benign pulmonary tumors; percutaneous transthoracic biopsy

Affiliation:

Hacettepe University, School of Medicine, Department of Radiology Ankara, Hacettepe University, School of Medicine, Department of Radiology Ankara, Hacettepe University, School of Medicine, Department of Radiology Ankara, Department of Radiology, Afyonkarahisar Health Sciences University, Afyonkarahisar, Hacettepe University, School of Medicine, Department of Radiology Ankara, Hacettepe University, School of Medicine, Department of Pathology Ankara, Hacettepe University, School of Medicine, Department of Radiology Ankara, Hacettepe University, School of Medicine, Department of Radiology Ankara



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