A Study of the Clinical Application of [18F]RCCB6 and [68Ga]Ga-NOTA-RCCB6 PET/CT Imaging in the Diagnosis of CD70-expressing Multiple Tumors

Inclusion Criteria: 1. Be between 18 and 65 years of age and of either sex. 2. Affected with renal cancer or lymphoma confirmed by puncture or surgical pathology. 3. Informed consent must be signed in writing by the subject or his/her legal guardian or caregiver. 4. Willingness and ability to cooperate with all programs of this study. Exclusion Criteria: * Subjects meeting any of the following criteria will be excluded from the study: 1. Severe hepatic and renal insufficiency; 2. Targeted therapy prior to radiotherapy or PET/CT scan. Renal function: serum creatinine less than or equal to the upper limit of the normal range; 3. Liver function: bilirubin, AST(SGOT)/ALT(SGPT) less than or equal to the upper limit of the normal range. 4. History of serious surgery in the last month. 5. Those who have participated in other clinical trials during the same period.