In the field of pathology, a syndrome refers to a group of concurrent symptoms that are typically associated with a specific disease. A syndrome is not a disease itself, but rather a collection of symptoms that often coexist in individuals with a particular condition. These symptoms may include physical manifestations, such as pain, swelling, or skin rashes, as well as non-physical symptoms like fatigue, mood changes, or cognitive issues.

Option 1, which suggests that a syndrome is a physiological disorder that can be identified, is incorrect. While a syndrome does involve physiological abnormalities, it is not considered a disorder itself.

Option 2, which suggests that a syndrome is a disease that cannot be cured, is incorrect. A syndrome is not a disease but a cluster of symptoms associated with a specific condition, and the underlying disease may or may not be curable.

Option 3, which suggests that a syndrome is a genetic disorder expressed in adulthood, is incorrect. While some syndromes can have a genetic component, not all syndromes are solely caused by genetic factors. Additionally, the age of onset for syndromes can vary and is not limited to adulthood.

Therefore, the correct answer is option 4, which states that a syndrome is a group of concurrent symptoms of a disease