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Thymolipoma

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[edit] Discussion of Thymolipoma

  • Thymolipoma is a rare, benign, slow-growing tumor that accounts for 2%–9% of all thymic neoplasms.
  • Occurs most frequently in young adults
  • Has no sex predilection.
  • Thymolipoma is usually asymptomatic and manifests as a large anterior mediastinal mass.
  • Histology: Composed of mature fat and thymic tissue.
  • It is usually detected incidentally at routine chest radiography and may occasionally mimic cardiomegaly or an elevated hemidiaphragm
  • Because of its soft and pliable nature, thymolipoma typically drapes itself around the heart and adjacent mediastinal structures, often becoming quite large before coming to clinical attention.
  • Association with myasthenia gravis, Graves disease, aplastic anemia, and other hematologic disorders has been reported.

[edit] Imaging Findings for Thymolipoma

  • At CT and MR imaging, thymolipoma manifests as a fatty mass with fibrous septa.

[edit] Images

Patient #1

[edit] See Also

[edit] External Links

[edit] References for Thymolipoma

  • Mizuki Nishino, Simon K. Ashiku, Olivier N. Kocher, Robert L. Thurer, Phillip M. Boiselle, and Hiroto Hatabu. The Thymus: A Comprehensive Review. RadioGraphics 2006 26: 335-348.