Key Action Statement 2A: Clinicians should not perform imaging unless the diagnosis of IH is uncertain, there are 5 or more cutaneous IHs, or associated anatomic abnormalities are suspected (grade B, moderate recommendation).

Aggregate Evidence QualityGrade B
BenefitsAvoid the cost, risk of sedation, and radiation associated with unnecessary imaging
Risks, harm, costPotential misdiagnosis if imaging is not performed
Benefit-harm assessmentBenefits outweigh harm
Intentional vaguenessNone
Role of patient preferenceMinimal; when parental anxiety is significant, ultrasonography is a low-cost and low-risk means of confirming the diagnosis
StrengthModerate recommendation
Key references8,4648