Families in Ladera Ranch, California, are demanding an investigation into an emerging cluster of rare cancers after at least six children were diagnosed with Ewing sarcoma. Residents and local attorneys are now probing potential environmental links, including heavy pesticide use, while state health agencies have initiated an updated review of cancer data.
Ladera Ranch Community Concerns Grow Following Childhood Cancer Diagnoses
The affluent community of Ladera Ranch, Orange County, is facing a wave of uncertainty as reports of rare childhood cancers continue to surface. Residents have identified at least six cases of Ewing sarcoma—a rare bone and soft tissue cancer that typically affects 200 to 240 children and teenagers nationwide each year—within their community. A second rare diagnosis, synovial sarcoma, has also emerged, further intensifying local alarm.
The urgency of the situation was underscored by the death of 17-year-old Brody Matteson in March following his battle with Ewing sarcoma. His mother, Megan Matteson, began connecting with other affected families shortly after his diagnosis. To have three families that just contacted me right away after Brody was diagnosed was helpful but scary at the same time,
she told NBC Los Angeles. Following her outreach, a community Facebook group saw 62 responses from residents reporting cancer cases within their own families, prompting calls for a formal investigation.
Investigation Into Pesticide and Herbicide Usage
Local resident and attorney Jackie French has led efforts to examine public records regarding the community’s landscaping practices. Her research found that 17 different types of pesticides and herbicides were applied throughout Ladera Ranch in June alone, with spraying occurring almost daily. While these applications reportedly comply with California state regulations, residents argue that notification methods are opaque and that the volume of chemicals used is excessive.
For more on this story, see Rare Pediatric Cancer Cluster in SoCal Sparks Investigation into Potential Cause.
Dr. Bruce Blumberg, a professor of developmental and cell biology at the University of California, Irvine, has lent his voice to the families’ concerns. Unless there’s a compelling reason to continue to use toxic chemicals, it makes a lot of sense to not use them,
Blumberg stated. He argued that the aesthetic maintenance of weeds does not justify the potential health risks to children and pets in the area.
Institutional Response and Ongoing Data Review
The pressure from residents has prompted institutional action. The Orange County Health Care Agency confirmed that representatives from the California Cancer Registry, the UCI Cancer Center, and the Orange County Agricultural Commissioner’s Office have met to address the concerns. The group has committed to an updated review of cancer data, with findings to be shared with the County Health Officer in the coming weeks.
Despite these steps, public health authorities maintain a cautious stance. Meanwhile, the Ladera Ranch Maintenance Corporation has announced the formation of a committee to review landscaping practices.
Legal Inquiries and Future Steps
For parents like Jessica Keetch, whose daughter Haven lost her leg to synovial sarcoma, the fight is about more than just the current data. I think people need to listen and wake up and realize something is happening to our children. This is not random,
Keetch said. As the community awaits the results of the health agency’s data review, residents remain focused on securing a shift toward non-toxic landscaping as a precautionary measure for the safety of their neighborhood.
Find more reporting in our Health section.
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