부산대학교 도서관

Hemangiomas are benign vascular neoplasms that most commonly occur in the skin, subcutaneous tissue, mucous membranes of the oral and genital regions, and abdominal viscera. Multiple hemangiomas are defined as hemangiomatosis. The majority of hemangiomas require no intervention, however, treatment is necessary in 10% to 20% of cases, due to their location, size, or behavior. The diagnosis of life-threatening hemangiomas base on radiographic studies is challenging because the hemangiomas might mimic other lesions or carcinomas. They are typically not diagnosed until surgery. In this case, we report an 18-year-old patient who had suffered from dyspnea and chest pain for several years. Chest radiographs showed a mediastinal mass that initial CT-guided biopsy reported as a thymoma. However, the definitive diagnosis, after open lung biopsy, turned out to be mediastinal hemangiomatosis.