Cost 
$540.00
TAT 
2 - 4 weeks
CPT Code 
81402
Test Code 
1300
Test Methods 
Microsatellite analysis
Specimen Types Accepted 
Blood
Saliva
Cultured Cells
Extracted DNA

Russell-Silver syndrome (RSS) is characterized by ­intrauterine growth retardation (IUGR), postnatal growth delay (<3%), short stature accompanied by normal skeletal survey and frequently delayed bone age, normal head circumference, and ­limb assymetry.  Typical appearance includes a triangular face with small chin and prominent forehead.  Approximately 7-10% of cases of RSS are caused by maternal uniparental disomy (UPD) for chromosome 7.