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APFONTA
FONTANA-MASSON SILVER HISTOCHEMICAL STAIN

Test Code APFONTA 
Test FONTANA-MASSON SILVER HISTOCHEMICAL STAIN 
Description Silver nitrate stain for argentaffin material; used in diagnosis of carcinoid tumors, melanomas, and pheochromocytomas.

NOTE: This test is usually ordered in conjunction with a pathology consultation. The pathology professional component will be billed separately by the consulting pathologist. 

Specimen Formalin-fixed or paraffin-embedded tissue specimen. 
Reference Values An interpretive report will be issued. 
Analytic Time 2 Days 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 88313