摘要
Lymphomatoid granulomatosis (LG), which was first described in the medical literature in 1972, is an uncommon lymphoproliferative disorder that is related to Epstein-Barr virus infection. The lung is the most commonly involved organ, and multiple ill-defined nodules or masses in the middle and lower lobes are its radiologic characteristics. So, pulmonary LG is easily mistaken for lung cancer with bilateral lung metastasis, metastatic tumors, pulmonary tuberculosis, vasculitis, lymphoma, or even sarcoidosis. Here, we reported a case of pulmonary LG. The initial bronchoscopic transbronchial biopsy and transthoracic needle biopsy results could not confirm the diagnosis. Pulmonary LG, grade 3, was finally diagnosed by video-assisted thoracoscopic surgery. After 3 cycles of chemotherapy, the same regimen as for diffuse large B cell lymphoma, improvement in the bilateral multiple pulmonary nodules was remarkable.