A 50-year-old female was admitted to Jichi Medical University Saitama Medical Center with a mediastinal tumor suspected on thoracic computed tomography (CT). The CT showed a well-demarcated, nodular lesion in the left anterior mediastinum, which was adjacent to the aortic arch. A contrast-enhanced dynamic CT study revealed spotty enhancement in the peripheral part of the tumor in the arterial phase; subsequently, the contrast effect progressively spread throughout the tumor in the delayed phase.
On magnetic resonance imaging (MRI), the tumor had a homogeneously hyperintense signal on T2-weighted image. Diffusion-weighted image demonstrated high intensity in the tumor with a high apparent diffusion coefficient. A neurogenic tumor was suspected, and surgery was performed without a definitive preoperative diagnosis. The tumor was removed and was histologically diagnosed as a cavernous hemangioma.
Here, we report the multimodality imaging findings of a patient with a cavernous hemangioma in the mediastinum. When a cavernous hemangioma is on the differential diagnosis of a mediastinal tumor, dynamic CT or MRI studies should be considered to facilitate making a preoperative diagnosis.
Cavernous hemangioma in the mediastinum： A case report focusing on multimodal image findings.
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自治医科大学紀要1881-252X(40)p17-21 2018
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