FISH Study – Neoplastic (FFPE) EWSR1 Interphase – UNDER VALIDATION

CPT Code(s):

Note: Adjustments and/or additional CPT codes and/or modifiers may be warranted.

Specimen Requirements:

  • Formalin-fixed paraffin embedded (FFPE) tissues
  • FFPE Isolated nuclei
  • De-paraffinated four-micron slide mounted tissue sections

Identification of tissues/cells to be targeted and DNA probe selection is the responsibility of the requesting or submitting parties.

Tissue sections and tissues utilized to obtain nuclei isolated from paraffin blocks submitted for interphase FISH analysis must include concurrent evaluation by qualified individuals utilizing additional non-FISH morphometric features to ensure that the requested FISH test(s) are applied to the appropriate tissues/cells.

Submit with completed Oncology Cytogenetic Analyses Requisition form

*The UF Path Labs will supply tissue transport medium upon request.



interphase nuclei fluorescence in situ hybridization "break-apart"" analyses; previous or concurrent conventional cytogenetic workup recommended (where possible)"


5-14 days (subject to broad range of variables)


Mon - Sat