CTICasesAnterior Mediastinal Lymphangioma
Imaging findings
CT demonstrates a multi-loculated cystic mass located in the anterior mediastinum. The inferior portion of the lesion appears to break apart, exhibiting a serpentine shape that infiltrates or dissolves into the surrounding normal tissue planes.
Key takeaways
Mediastinal lymphangiomas (or cystic hygromas) are benign lymphatic malformations. A classic imaging feature is their tendency to mold around and dissect into surrounding normal anatomical structures without causing significant mass effect or invasion, giving them a characteristic serpentine, infiltrative appearance on CT or MRI.
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