Livedo Reticularis Evaluation - Medical Algorithm

Gibbs et al reported an algorithm for diagnosing a patient with livedo reticularis (LR). The authors are from the University of Pittsburgh.

Patient selection: presence of livedo reticularis

Patient group: infant vs older patient

Infant with LR	Diagnosis
resolves with warming	livedo marmorata
does not resolve with warming	livedo marmorata telangectasia congenita

where:

• The algorithm in implementation is modified to include LR secondary to a systemic disorder.

Evaluation of the older adult:

(1) resolution quickly and completely with warming

(2) underlying systemic disease

(3) continuously present

Resolves with Warming	Underlying Systemic Disease	Continuously Present	Diagnosis in Older Patient
Yes	NA	NA	cutis marmorato or physiologic LR
No	Yes	NA	LR secondary to systemic disorder
No	No	Yes	idiopathic LR
No	No	No	primary LR

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Algorithm of Gibbs et al for Evaluating a Patient with Livedo Reticularis