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groove sign
Sunken veins seen when an extremity is elevated, marking the borders of different muscle groups. Pathognomonic for eosinophilic fasciitis.
Related
eosinophilic fasciitis (Shulman's syndrome)
General
sign/symptom
References
Ferri's Clinical Advisor, Instant Diagnosis and Treatment,
Ferri FF (ed), Mosby, Philadelphia, 2003, pg 305