[A case of multicentric Castleman lymphoma in the left pulmonary hilum and mediastinum].

A 29-year-old female who complained of low grade fever was detected an abnormal shadow in the left pulmonary hilum on a chest roentgenogram. Thoracotomy revealed that the tumorous lesion originated from left hilar lymph node. Left hilar and mediastinal lymph nodes were extirpated. Histopathologically, three of all the resected lymph nodes were diagnosed as Castleman lymphoma (plasma cell type). Therefore, not only the main lymph node but also the associating lymph nodes should be completely extirpated, since, in this disease, especially plasma cell type, the lesions are often multicentric.