The aim of this clinical trial is to compare musculoskeletal ultrasound with the reference standard diagnostic test (cranial CT scan) in patients with minor head trauma associated with scalp hematoma and suspected skull fracture. The primary objective is to assess the diagnostic accuracy of point-of-care ultrasound in detecting skull fractures, in terms of sensitivity, specificity, positive and negative predictive values, and likelihood ratios, using cranial CT as the reference standard.

Inclusion Criteria:

• 6 years of age or less at enrollment
• Blunt head trauma with skull haematoma
• Glasgow Coma Scale (GCS) >= 14
• signature of the informed consent form

Exclusion Criteria:

- Haemodinamic or neurological instability