His dementia went undiagnosed for over a decade. A new study explains why that’s so common.

A study by UT Health found that Hispanic patients in South Texas with a rare form of dementia are diagnosed later than others. This form of dementia can appear as early as age 40. The study's findings may help explain why some cases of dementia go undiagnosed for an extended period.

One example is a patient whose dementia was not diagnosed for over a decade. Further details about the study and its implications are available from the San Antonio Report, a local nonprofit newsroom.