Increased incidence of positive tests for estrogen binding in mammary carcinoma specimens transported in liquid nitrogen.
Use of a liquid nitrogen container for convenient transport of frozen mammary carcinoma tissue for hormone-receptor assays is described. The container can be used in dry or wet mode and is appropriate for all types of transport, including air. Experience shows a significantly higher incidence of positive tests on specimens transported by this means than on specimens transported in dry ice.
D001943:Breast Neoplasms / Q000032:analysis*; D005260:Female; D005615:Freezing; D005629:Frozen Sections; D006801:Humans; D009584:Nitrogen; D011960:Receptors, Estrogen / Q000032:analysis*; D013048:Specimen Handling / Q000295:instrumentation / Q000379:methods*
D011960:Receptors, Estrogen; D009584:Nitrogen