J Korean Radiol Soc.  1984 Sep;20(3):514-518. 10.3348/jkrs.1984.20.3.514.

Posterior mediastinal teratoma - Diagnosis by computerized tomography and ultrasonography

• Choo YM
• Im CK
• Yeon KM
• Han MC

• KMID: 2463006
• DOI: http://doi.org/10.3348/jkrs.1984.20.3.514

Abstract

Teratomas, usually arising in the anerior mediastinum, are very uncommon in the posterior mediastinum. Embryologic development of anterior mediastinal teratoma is thought to be from thymic anlage which descends fromthe third branchial cleft and pouch, while that of posterior mediastinal teratoma is thought to be from the remnant of notochord. CT findings of posterior mediastinal teratomas are not different from teratomas elsewhere,containing fat, calcification, soft tissue and thick walled cyst. Ultrasonographic findings are mixed echogenicmass containing cystic portion, highly reflective solid portion and area of acoustic shadowing. Authors recently experienced 2 cases of surgically proven posterior mediastinal teratoma and report with review of literature.

MeSH Terms

Acoustics
Branchial Region
Diagnosis*
Mediastinum
Notochord
Shadowing (Histology)
Teratoma*
Ultrasonography*