Primary mediastinal leiomyoma: an angiographic study and embolisation of the feeding vessels to improve the surgical approach.

The case of a young woman suffering from superior vena caval syndrome secondary to a tumour mass of the anterosuperior mediastinum is presented. Angiography showed a highly vascularised mass. Surgical biopsy confirmed the diagnosis of leiomyoma of the mediastinum. Percutaneous embolisation before surgery was performed.