READER QUESTIONS:
Frozen Block Can Fool You
Published on Tue Mar 24, 2009
Question: Our pathologist examined renal biopsy A with an H&E stain and renal biopsy B with an immunofluorescent stain. Should we report 88305 x 2 in addition to a special stain code? North Carolina Subscriber Answer: To answer the question, you have to know with certainty if you-re dealing with one kidney biopsy specimen, or two. Because of the way they-re processed,renal biopsies can often be a source of confusion on this point. Here's why: For hematoxylin and eosin (H & E) staining, the pathologist processes the kidney tissue as a paraffin block. But for immunofluorescent (IF) stains, the pathologist often snap freezes a portion of kidney tissue instead of imbedding it in paraffin. That means you can expect specimen processing to divide a standard renal biopsy into two pieces. Caution: If biopsy -A- and -B- in your example represent the two portions of a single renal specimen, you should [...]