Clinical and Diagnostic Challenges in Primary Splenic Lymphomas: When is Splenectomy Necessary to Differentiate SMZL from DLBCL?

原发性脾淋巴瘤的临床和诊断挑战：何时需要进行脾切除术以区分脾边缘区淋巴瘤和弥漫性大B细胞淋巴瘤？