Fact-sheet: Teratoid tumor of mediastinum - teratoma
Updated on 06/30/2020 at 8:39 AM
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Definition
Most common germ cell tumor of the mediastinum.
Slow-growing mass of variable appearance, containing cystic areas, sebum, fat, and bone.
Clinical features
Large benign forms can be fatal.
Symptoms include pain, hemoptysis sometimes massive, cough, trichoptysis, and bronchiectasis.
Radiography
Mediastinal tumor syndrome, most often anterosuperior, sometimes global, with deformation of the mediastinal contours.
This deformation is lateralized to the right or left, sometimes bilateral. The contours of this deformation are well-defined, unilobulated, multilobulated, or ill-defined.
CT
Left upper lobe mass, polylobulated, containing calcifications, cavitary areas, soft-tissue areas, and fat areas.
MRI
The fat component shows hyperintensity on T1-weighted images and hypointensity on T2-weighted images with fat signal suppression.
The fluid component is hypointense on T1-weighted images and hyperintense on T2-weighted images.
Soft-tissue areas are isointense compared to the chest wall muscles.
Management
Surgical treatment