Harvard Review Finds No Workplace Brain Tumor Cluster at Newton-Wellesley Hospital
An external Harvard-led review of 11 nurses from Newton-Wellesley Hospital diagnosed with brain tumors on the fifth-floor maternity unit found no evidence of a true workplace cancer cluster or harmful environmental exposures. The tumors were mostly benign (six meningiomas, two pituitary adenomas, one optic nerve schwannoma) with two malignant gliomas, and latency data did not support occupational causation. Experts concluded the hospital workplace is a safe environment and that public concern likely reflects perception rather than a genuine cluster.
