Cause 5. Tumors: The Silent Infiltrators
Brain tumors represent another key contributor to the development of cerebellar ataxia. Whether malignant or benign, a tumor situated in or near the cerebellum can affect its function, resulting in ataxic symptoms. Medulloblastomas and astrocytomas are two primary types of tumors that can affect the cerebellum, though metastatic tumors can also reach this region.
Medulloblastomas are malignant growths that originate in the cerebellum, specifically in the region known as the posterior fossa. Even though they are more prevalent in children, adults can be affected too. As these tumors grow and occupy more space, they apply pressure on the cerebellum, disrupting its functions and causing ataxia.
Astrocytomas, named after the star-shaped brain cells (astrocytes) they stem from, are another form of cerebellar tumor. Depending on their growth rate and malignancy, these tumors can range from minimally to severely disruptive, with higher-grade astrocytomas causing more pronounced ataxic symptoms. (5)
