A brain weighing about 1400 grams, harboring hundreds of billions of cells, with various electrochemical signals constantly transmitting along extremely intricate and complex pathways – its structure is millions of times more complex than our most advanced chips.
The thumb-size brainstem deep within the human brain governs heartbeat and respiration. It is packed with critical groups of neurons and conduction bundles. The vertebral arteries, vital for supplying blood to the brain, also pass through this area.
In such a perilous, complex, and narrow zone, often the room for surgery is measured in millimeters.
Old Feng's tumor takes on the convoluted shape of a tree root, entwining in the crevices between these neuronal groups and conduction bundles. Some are even attached to the neuronal clusters, making it challenging to differentiate between the two.
