[Synchronous Follicular Lymphoma and Lung Adenocarcinoma-A Case Report].

A 67-year-old man diagnosed with multiple synchronous malignancies, including follicular lymphoma and lung adenocarcinoma, underwent 1 cycle of chemotherapy with obinutuzumab and bendamustine, followed by lower lobectomy. After surgery, adjuvant therapy with osimertinib was administered. The patient showed no evidence of lymphoma or lung cancer recurrence for over a year after surgery. Multiple malignancies involving both hematological neoplasms and solid tumors are rare, to optimize treatment and improve patient outcomes, consultations with multiple medical departments are warranted.