J Korean Soc Radiol.  2010 Nov;63(5):449-452. 10.3348/jksr.2010.63.5.449.

Posterior Mediastinal Angiolipoma that Presented with Pleural Effusion

• Lee SH
• Lee JH
• Woo JJ
• Lee BH
• Kim SH
• Hong YO

• KMID: 2097916
• DOI: http://doi.org/10.3348/jksr.2010.63.5.449

Abstract

Angiolipoma is a rare benign tumor composed of mature adipose tissues and blood vessels. It is usually located in the subcutaneous tissue of the trunk, the extremities and the neck, and few cases of angiolipoma have been reported in the mediastinum. We report here on a rare case of posterior mediastinal angiolipoma that presented with pleural effusion.

MeSH Terms

Angiolipoma
Blood Vessels
Extremities
Mediastinum
Neck
Pleural Effusion
Subcutaneous Tissue

Figure

• 

  Fig. 1 Posterior mediastinal angiolipoma in 66-year-old woman. A. On pre-contrast CT scan, the mass (white arrows) is poorly differentiated from the pleural effusion because the density of the mass is similar to that of the fluid (20-30 HU). B. Post-contrast CT scan demonstrates a strong enhancement (150-200 HU) and internal irregular areas of low attenuation (30-40 HU) in the mass. The right cortex of the vertebral body is eroded by the mass (black arrows). C. On coronal PET scan, the mass (white arrows) shows moderate increased FDG uptake (SUV : 1~2) higher than that of adjacent soft tissue in the 9th right paravertebral area. D. Microscopic examination of the surgical specimen shows a tumor composed of mature adipose tissue and thin-walled blood vessels (H & E staining, ×100).

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