An independent investigation into the cases of 11 current and former nurses at Newton (Mass.)-Wellesley Hospital who were found to have tumors concluded the tumors were not associated with the workplace, the Boston Herald reported June 14.
An investigation was opened in 2025 after a nurse told news outlets that 10 nurses who worked in the maternal care ward were diagnosed with brain tumors. The cases were spread across a few years.
The investigation report concluded there is no evidence of “a true workplace tumor cluster” at the facility and there is no evidence of any harmful chemicals, radiation or other exposures that causes tumors, NBC 10 Boston reported.
In total, 11 nurses were diagnosed with tumors, two of which were malignant. Six of the cases are meningiomas, two are gliomas, two are pituitary adenomas and one is a schwannoma of the optic nerve.
Newton-Wellesley Hospital is part of the Mass General Brigham system.
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