Background and ObjectiveIntracranial germinomas are rare brain tumors. In the present study, we collected data of patients with histology-proven germinomas, and analyzed their neurological characteristics, treatment procedures, and clinical outcomes.MethodsWe reviewed the data of patients with “non-secreting” intracranial germinomas, and analyzed the neurological characteristics, treatment procedures, and clinical outcomes.ResultsThere were 162 (69.8%) male patients and 70 (30.2%) female patients. Pineal germinomas were mainly found in male patients (98.3%), and germinomas in sellar/suprasellar region were often observed in female patients (67.5%). The most common clinical presentations were polyuria/polydipsia (42.7%), headache (40.5%), visual disturbance (37.5%), and motor impairment (28.4%). Patients in the pure germinoma group had a higher serum beta-human chorionic gonadotropin (β-HCG) level than in the germinoma plus syncytiotrophoblastic giant cells (STGCs) group (P=0.001), and no significant difference was noted in serum alpha-fetoprotein (AFP) level between the two groups (P=0.540). Bifocal or multifocal tumors had a higher tendency to intracranial dissemination and spinal seeding (P<0.001 and P<0.001, respectively). The mean duration of open craniotomy was 268.8 min with an average volume of blood loss of 316.9 mL, compared with 27.0 min and 6.2 mL in cases who received stereotactic biopsy (P<0.001 and P<0.001). The most common complication in both groups was postoperative hemorrhage (7.0% and 8.5%). Patients who received biopsy had higher KPS scores after surgery and at hospital discharge than on admission in contrast to open craniotomy (P<0.001 and P=0.047, respectively). Deterioration of KPS at hospital discharge than on admission was observed in 4, 7, 18, and 1 cases who received partial resection, subtotal resection, gross total resection, and biopsy (P<0.001).ConclusionsBifocal and multifocal germinomas have a higher tendency of dissemination, and additional attention should be paid to the imaging findings. Patients may not necessarily benefit from the surgical resection because of the surgical trauma and the postoperative complications, and stereotactic biopsy is highly significant in clinical practice.