Learning objectives
Describe and provide imaging features of various pulmonary arterial and venous tumors.
Discuss important clinical implications of these tumors.
Discuss the role of Dual Energy CT and Spectral CT in these lesions.
Background
Recognition of pulmonary venous and arterial tumors has an important clinical role in identifying cause of symptomatology,
planning for interventional procedures such as surgery,
and guiding management.
Pulmonary arterial and venous tumors may be primary,
locally invasive,
or metastatic in the form of tumor emboli. These tumors can be differentiated into benign or malignant etiologies.
Benign pulmonary artery tumors includepapillary fibroelastoma,
fibroma,
and leiomyoma.
Malignant primary pulmonary artery tumors include leiomyosarcoma,
spindle cell sarcoma,
rhabdomyosarcoma,
angiosarcoma,
chrondrosarcoma,
and osteosarcoma.
Benign primary pulmonary venous tumors include...
Findings and procedure details
Pulmonary venous and arterial tumors must be distinguished from other pulmonary vascular pathology,
and can be aided by the use of Dual Energy and Spectral CT.
Here we review imaging findings of pulmonary arterial and venous tumors:
Primary benign pulmonary arterial tumor
Papillary fibroelastomas are benign tumors that arise from cardiac valves.
These lesions can be complicated by pulmonary or systemic embolization depending on the primary site.
Treatment of these lesions depend on size,
associated comorbidities and symptoms.
Primary malignantpulmonary venous tumor
Primary lung cancer...
Conclusion
Pulmonary arterial and venous tumors are important for the radiologist to identify accurately in order to make definitive diagnoses and help guide clinical management.Casesfrom local invasion ofprimary lung cancers,tumor emboli to the pulmonary arterial system,
and invasion of metastatic lung lesions with invasion into thepulmonary venous vasculature and left atrium were presented.
It is important to also distinguish these findings from other benign etiologies that may mimic tumor emboli.New technologies using Dual Energy CT with lung perfusion imaging can also be used to identify pulmonary...
Personal information
Contact details: Dr.
Akshita Mehta
Resident in Training
Department of Radiology,
UT Southwestern Medical Group Dallas,
TX USA.
Email:
[email protected]
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