Figure 3.

Sankey diagram of specimen type collected and specimen type undergoing FISH testing by institution (data access group). Of all the 222 specimens that underwent FISH testing in this cohort (right column), the majority are core biopsy, followed by excisional biopsy, and cell block. The core biopsy that have FISH performed include, of course, core biopsy only specimens but also FNAB with core biopsy and all FNA with cell block and core biopsy. One FNA with cell block and core biopsy had FISH performed on the cell block due to decalcification of the core biopsy (bone specimen). Abbreviations used: FNA (fine needle aspiration), CB (cell block from FNA), core biopsy (core needle biopsy), EB (excisional biopsy), MGH (Massachusetts General Hospital), MSKCC (Memorial Sloan Kettering Cancer Center), SFVAHCS (San Francisco Veterans Administration Health Care System), UCSF (University of California San Francisco), UVA (University of Virginia).