Ladera Ranch Families Call for Probe After Rare Pediatric Cancer Cluster

Rise in Rare Cancer Cases

Residents of Ladera Ranch, an affluent Orange County community, are grappling with a cluster of rare pediatric cancers. According to NBC Los Angeles, about a dozen children in the area have been diagnosed with rare cancers, including Ewing sarcoma and synovial sarcoma. Meanwhile, People.com reported that six children were diagnosed with Ewing sarcoma, with one teen, Brody Matteson, losing his life to the disease in March 2026. Seems very, very out of the ordinary for our community to have that many cases here, said Dustin Matteson, Brody’s father.

Community Outcry and Pesticide Concerns

Families in Ladera Ranch are demanding transparency about pesticide use. Jackie Frentz, a local resident and attorney, reviewed public records and found that 17 types of pesticides were applied in the community in June 2026, with spraying occurring almost daily. It is difficult to ignore such an unusual number of cancer cases, especially rare types, Frentz said. Residents argue that the use of synthetic pesticides, which they claim are unnecessary for weed control, may be contributing to the health crisis.

Dr. Bruce Blumberg, a professor of developmental and cell biology at the University of California, Irvine, has linked pesticide exposure to cancer risks. Unless there's a compelling reason to continue to use toxic chemicals, it makes a lot of sense to not use them, Blumberg said. He cited studies suggesting a correlation between pesticide use and childhood cancers, noting that alternatives like organic weed control are viable. It's not as if we are talking about malaria. We are talking about weeds, he added.

The Ladera Ranch Maintenance Corporation has formed a committee to evaluate its landscaping practices, following pressure from residents. We felt like we got some positive feedback, that they’re going to be willing to work with us, said Megan Matteson, Brody’s mother. The homeowners’ association is considering an integrated pest management program that prioritizes non-toxic methods. However, families remain skeptical, citing past inaction on similar concerns.

Scientific Perspectives and Calls for Action

Experts and advocates are urging immediate action to reduce chemical exposure. These are our children. These are our babies, said Keetch, who has pushed for safer alternatives. I raised my children in Ladera, thinking it's safe. Maybe there's no safe community, but if we can do better, we need to do better.

Institutional Responses and Ongoing Investigations

Authorities have not confirmed a cancer cluster but are reviewing the cases. The California Cancer Registry is investigating reports of unusually high cancer rates, while the Orange County Health Care Agency is re-examining the cases. We are aware that public health agencies are reviewing available information, LARMAC said. However, no formal findings have been released.

Parents are also raising concerns about pet health, with some reporting an unusual number of cancer cases among animals. We don’t have a clear line of evidence to pesticides, but it is one of the things that concerns us, said Dustin Matteson. The community continues to push for transparency, with some families relocating to avoid potential risks.

As the investigation unfolds, families remain vigilant. I’ll cry thinking about it because it's the worst day for a parent you can ever have, said Keetch, reflecting on her daughter’s diagnosis. With no definitive answers, the community is calling for a shift toward safer practices and greater accountability. Unless there's a compelling reason to continue to use toxic chemicals, it makes a lot of sense to not use them, Blumberg reiterated, echoing the growing demand for change.

NBC Los Angeles reported on the rising cancer cases and pesticide concerns. People.com detailed the impact on families and the call for action. VINnews highlighted the community’s investigation into pesticide use. latination.com covered the broader health and environmental concerns.