Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Etiology/Pathophysiology:
Usually due to hematogenous spread of tumor. Less common pathways of
spread include the lymphatics, bronchi, pleura, and direct invasion.
Common causes include Wilms tumor, osteosarcoma, Ewing sarcoma,
rhabdomyosarcoma, fibrosarcoma, lymphoma, and testicular and ovarian
germ cell tumors. Osteosarcoma and Wilms are the most common.
Pathology:
Not applicable
Imaging Findings:
Single or multiple soft tissue nodules of variable size in the lung
which are most commonly peripheral and sub pleural in location.
Metastases from sarcomas can cause pneumothoraces. Osteosarcoma
metastases can calcify. CT is far more sensitive for detection than
the CXR.
DDX:
References:
Additional pediatric resources: GeneralPediatrics.com | PediatricEducation.org | SearchingPediatrics.com
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