Lipomas are benign tumors composed of mature fat. In the mediastinum, lipomas are exceedingly rare (Macchiarini and Ostertag 2004; Swanson 1991). Being most often documented in the anterior mediastinum, they are believed to be related to the normal thymic adipose tissue. Mediastinal lipoma may occur in the setting of lipoblastomatosis, a condition associated with obesity and abnormal systemic fat deposits.
Less than 2% of all mediastinal tumors. However, this is an approximate estimation since these tumors are often difficult to separate from well-differentiated, lipoma-like liposarcoma and thymolipoma.
No significant age predilection.
No sex predilection.
Commonly seen in the anterior mediastinum.
Complete surgical excision is the treatment of choice.
Surgical resection is curative.
Lipomas of the mediastinum are well-delimited firm masses with vague peripheral lobulation and a homogenous, yellow cut...