CTICasesPericardial Lymphangioma
Imaging findings
Breast MRI shows an incidental, lobulated, multi-septated fluid-density mass located within the pericardium adjacent to the right atrium. Contrast-enhanced chest CT confirms a benign, multi-loculated cystic lesion in the pericardial space. Surgical resection confirms a pericardial lymphangioma.
Key takeaways
Lymphangiomas (cystic hygromas) are benign lymphatic malformations that most commonly occur in the neck and axilla. Intrathoracic lymphangiomas are rare, typically arising in the mediastinum, and can occasionally be located within the pericardial space. They present as multi-septated cystic masses that are best characterized on MRI and treated with surgical resection.
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