Prof. Kim Seung-ki, a neurosurgeon at Seoul National University Hospital, led the discovery of a shared biological component ...

The tumor was confined to the testis, without vascular invasion, and all margins (including the spermatic cord) were negative. CT of the chest, abdomen and pelvis showed no sign of metastatic disease.

During follow-up, the patient’s cephalic symptoms and lung lesions remained stable. Cranial MRI scans showed no clear manifestations of brain parenchymal or meningeal metastases, and CSF analysis ...