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The doctors gathered around the lightbox analyzing Sisi's condition are all world-class physicians.
However, at this moment, the resurgence and metastasis of Sisi's tumor had plunged everyone into silence, for tumors are the formidable enemy of human medicine.
Song Zimo took a deep breath and said, "It seems we need to carry out a full body examination to see whether there is metastasis in the head or other parts. If there is metastasis in the head, that would be troublesome."
The head is different from the abdomen, which lacks a bony 'shield' and can be treated with Gamma Knife's focused ultrasound. The head is protected by the skull, and ultrasound cannot penetrate the bone, let alone the head. Even treating lung tumors in the chest with the Gamma Knife, as Yang Ping did for Sisi, is a clever workaround, allowing the ultrasound to enter the thoracic cavity through the intercostal spaces.
