左鎖骨近位部に生じた海綿状血管腫の 1 例

A 53-year-old woman. A subcutaneous mass was removed from the left clavicle region when she was 8 years old. A mass developed in the left subcutaneous chest at around 43 years of age. CT revealed mass lesions in the left proximal clavicle and mediastinum, and the patient was referred to our hospital. Left subcutaneous hemangioma of the clavicle and mediastinal hemangioma were considered, and total resection was performed. Pathological examination revealed the subcutaneous mass to be cavernous hemangioma and the mediastinal lesion to be mediastinal hemangioma. Subcutaneous cavernous hemangioma associated with mediastinal hemangioma is rare. As there are reports of hemangiomas in other organs and associated symptoms, it is necessary to search for the presence of visceral hemangioma.