Clinical Research Directory

Inclusion Criteria: * The pathological diagnosis is slow-growing lymphoma, such as: marginal-zone B-cell lymphoma, Waldenstrom macroglobulinemia lymphocytic lymphoma, CLL/SLL, mantle cell lymphoma. * Have undergone or planned to undergo FDG PET scan for indications including initial staging, therapeutic response evaluation, or follow-up examinations within 3 to 6 months in the clinical observation group. * Able to lie flat for at least 30 minutes. * Signing the subject consent form. * ECOG grade 0-2. * The timing of F-18-FDG usage in this trial follows the "Lymphoma Treatment Principles" of our institution. Exclusion Criteria: * Pregnant woman * Severe renal impairment (eGRF\< 30ml/min) * Known or suspected allergy to radiopharmaceuticals * Concurrent or previous diagnosis of malignancies other than lymphoma * Inability to undergo the necessary PET scan procedure * Refusal or unwillingness to sign the informed consent form * Severe medical conditions (severe disabilities, mental disorders)