Gleolan – Visualizing Brain Cancer in a Different Light

Tech Report

Neurosurgeons have several tools at their disposal for locating a high grade glioma/glioblastoma during surgery.

Gloelan is an oral solution the patient drinks prior to surgery that helps the neurosurgeon locate the brain tumor.

Malignant tissue fluoresces a red-violet color, while normal brain tissue appears blue.

Gleolan is the name of a substance called 5-aminolevulinic acid or 5-ALA which is converted by tumor cells to another substance that glows red when you shine a light on it.

Gleolan is given to a patient who has a glioblastoma. During surgery, a blue light is shined on the tumor.

Surgeons will see it glow red which helps to distinguish what is a tumor from what is a normal brain.

There are currently over 700 surgeons trained on the use of Gleolan in almost 250 centers, with 80,000 patients benefiting from the advanced solution worldwide.

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