Dynamic magnetic resonance imaging features of cavernous hemangioma in the manubrium:A case report

摘要

BACKGROUND Osseous hemangiomas,especially those located in the manubrium,are rare benign tumors.In a review of the literature,only three case reports of sternal hemangioma were found.A precise diagnosis is difficult because of their nonspecific findings on computed tomography(CT)/magnetic resonance imaging(MRI).CASE SUMMARY An 88-year-old woman was suffering from a progressively enlarging mass in the manubrium.Chest CT images showed an osteolytic and expansile lesion with cortical destruction.Vascular malformation was suspected after CT-guided biopsy.On the dynamic MRI scans,the mass showed a bright signal on the T2-weighted image,peripheral nodular enhancement on the early-phase images and progressive centripetal fill-in on the delayed-phase images.Cavernous hemangioma was suspected preoperatively based on the MRI features and finally confirmed by histopathologic analysis.CONCLUSION This uncommon case demonstrates the possible characteristic features of manubrium cavernous hemangioma on dynamic MRI scans;knowledge about these features may prevent patients from developing catastrophic complications,such as rupture or internal hemorrhage,caused by biopsy or surgery.