Fig. 26.

Chest imaging shows well the highly heterogeneous contents of mediastinal teratomas. a Mature cystic teratoma in a 40-year-old man. Contrast-enhanced CT scan shows a heterogeneous anterior mediastinal mass with areas of fat (open arrow), calcification (arrow) and fluid attenuation (*). Posterior displacement of mediastinal structures is also be seen. b Photograph of the surgical specimen. c Contrast-enhanced CT scan of an asymptomatic 24-year-old woman demonstrates a well-defined uniloculated mass located in prevascular space which shows a cystic changes within (*). Non foci of calcification were identified. d The mass was surgically removed and pathological examination confirmed a benign teratoma