Dyspnea as a clinical manifestation in primary retroperitoneal teratoma

M. C.H. Lin, K. K. Ng, C. F. Hung, J. H. Tseng, Y. C. Cheung, Y. L. Wan*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations


The retroperitoneum is an unusual location for a teratoma in adults. We report a case of retroperitoneal teratoma with clinical manifestation of dyspnea and chest discomfort. Chest radiograph showed elevated left hemidiaphragm. Ultrasonography (US) showed a hypoechoic tumor in the left subphrenic area. Computed tomography (CT) revealed a hypodense tumor in the left subphrenic area. Endoscopic ultrasound-guided fine-needle aspiration of the tumor suggested a diagnosis of liposarcoma. Magnetic resonance imaging (MRI) showed a tumor in the left subphrenic area that was isointense to the spleen on T1-weighted images and hyperintense on T2-weighted images. No typical imaging characters of teratoma such as fat, fat-fluid level, calcification, hair, or Rokitansky bodies were depicted on US, CT, or MRI in our case. The thoracic symptoms completely disappeared after surgical removal of the tumor.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalChinese Journal of Radiology
Issue number3
StatePublished - 2001


  • Magnetic resonance imaging
  • Retroperitoneal neoplasm
  • Teratoma


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