Mediastinal lipomatosis refers to a condition where there is a deposition of a large amount of mature adipose tissue in the mediastinum. It is a relatively common benign cause of mediastinal widening.
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Epidemiology
Associations
- steroid use
- Cushing syndrome
- obesity 1
Pathology
Mediastinal lipomatosis is the result of increased deposition of normal unencapsulated fat 1.
Location
It is most common in the upper mediastinum 2.
Radiographic features
CT
Seen as regions of homogeneous unencapsulated fat attenuating region involving the mediastinum, which will sharply outline vessels and lymph nodes 2.
See also
- Madelung disease: fat deposition in the neck region and upper trunk
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