CTICasesEctopic Mediastinal Teratoma
Imaging findings
Chest CT shows a well-circumscribed, non-enhancing mass in the right paratracheal space containing a fat-fluid level. Sestamibi and PET scans were negative, and pathology confirmed a mature cystic teratoma.
Key takeaways
Mediastinal teratoma is a germ cell tumor that typically occurs in the anterior mediastinum. Ectopic paratracheal mature cystic teratomas can occur in older adults and are characterized by a diagnostic fat-fluid level.
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