Clinical Research Directory

Inclusion Criteria: 1. Case group * The age of seeking medical treatment is less than or equal to 18 years old; ·The medical record system diagnosis contains the diagnosis of "Kawasaki Disease", "mucocutaneous lymph node syndrome" or "IVIG non-response Kawasaki disease" * At least one complete chest X-ray examination data (images and reports) is available during the same hospitalization 2. Control group * The age of seeking medical treatment is less than or equal to 18 years old * The same period as the case group * Fever lasts for 3 days or more * Rule out the possibility of diagnosing Kawasaki disease Exclusion Criteria: 1. Case group * Chest X-ray quality issues: Severe artifacts, overexposure/underexposure leading to inability to assess key structures * Incomplete clinical information, including lack of chest X-ray examination, laboratory tests, and unclear days of fever Inability to determine the final diagnosis (such as loss to follow-up, diagnosis in doubt) 2. Control group * Chest X-ray quality issues: Severe artifacts, overexposure/underexposure leading to inability to assess key structures * Incomplete clinical information, including lack of chest X-ray examination, laboratory tests, and unclear days of fever * Inability to make a clear final diagnosis (such as loss to follow-up, questionable diagnosis)