Multi-center Study on CCeLL-In Vivo's Clinical Efficacy for Intraoperative Brain Tumor Diagnosis.

Inclusion Criteria: * Male or female patients aged 18 years or older * Patients suspected of having a brain tumor who are scheduled for neurosurgery and are considered candidates for tumor resection * Patients who understand and have signed the informed consent form The specimens used in this study must meet all of the following criteria: * Specimens obtained from patients who have agreed to participate in this clinical trial and who meet the inclusion criteria * Normal tissue specimens obtained unavoidably during tumor resection surgery in tumor patients Exclusion Criteria: * Patients undergoing multiple surgeries * Patients with bacterial or viral infections * Patients who develop allergic reactions to the investigational medical device * Patients with a history of allergy to Indocyanine Green (ICG) * Patients with iodine hypersensitivity * Patients taking choleretic agents or rifampicin Specimens meeting any of the following criteria will be excluded from this clinical trial: \- Specimens with unclear tumor presence or carcinoma diagnosis results based on the reference standard permanent section analysis