The story
If you are walking here right now, you are likely feeling the pulse of a city within a city. This is the heart of Lisbon’s medical world, a place of white stone, rushing ambulances, and thousands of students carrying heavy backpacks toward the Faculty of Medicine. You are walking along Avenida Professor Egas Moniz, a street named for a man who spent his life trying to map the most mysterious territory on earth: the human brain.
António Egas Moniz was born in 1874 in a small village called Avanca. He was a man of immense ambition and curiosity. Before he became the world-renowned scientist we remember today, he was a high-ranking diplomat. In 1918, he served as Portugal’s Minister of Foreign Affairs and even led the national delegation at the Paris Peace Conference after the First World War. But despite his political success, his true obsession lay under the skull.
In 1927, he achieved something that had never been done before. By injecting a special contrast liquid into the arteries and using X-rays, he successfully photographed the blood vessels of a living brain. It was called cerebral angiography. For the first time in history, doctors didn't have to guess where a tumor or a blockage might be; they had a map. It is a technique that, in an evolved form, still saves lives in hospitals all over the world every single day.
However, his legacy is not without its shadows. He is also the man who developed the leucotomy, a surgical procedure later known as the lobotomy. In 1949, he became the first Portuguese citizen to win a Nobel Prize for this work. While it was seen as a breakthrough for treating severe mental illness in an era before modern medicine existed, it eventually became highly controversial and was largely abandoned as better treatments emerged. Egas Moniz himself seemed to understand that science is a moving target. He once said that men pass away, but scientific conquests remain or are transformed by those who follow.
The city of Lisbon chose to honor him here, in this specific spot, because this avenue connects the University of Lisbon’s medical campus with the massive Hospital de Santa Maria. The street was officially named by a municipal decree on February 13, 1963. Local officials had actually tried to name a street after him years earlier, right after he won his Nobel Prize, but the rules at the time forbid naming streets after living people. They had to wait until eight years after his death in 1955 to finally put his name on the map.
As you continue your walk, look toward the entrance of the Faculty of Medicine. Among the sea of white lab coats and the noise of the traffic, you might notice the statues and the grand, institutional architecture that defines this area. Take a moment to look at the windows of the hospital or the labs; somewhere in there, a student is likely looking at a digital map of a patient's brain, using the very light that Egas Moniz first turned on nearly a century ago.