Can you provide more details about the uneven immunoreactivity? Are the negative cells located at the periphery of the specimen or are the negative and positive tumor cells mixed together throughout the specimen?
Richard Richard W. Cartun, MS, PhD Director, Histology & The Martin M. Berman, MD Immunopathology & Morphologic Proteomics Laboratory Director, Biospecimen Collection Programs Assistant Director, Anatomic Pathology Hartford Hospital 80 Seymour Street Hartford, CT 06102 (860) 972-1596 (860) 545-2204 Fax -----Original Message----- From: Joanne Clark via Histonet [mailto:histonet@lists.utsouthwestern.edu] Sent: Tuesday, November 29, 2016 4:09 PM To: histonet@lists.utsouthwestern.edu Subject: [Histonet] ER/PR Uneven Staining I had a breast needle core today that when stained with ER and PR the staining was uneven throughout the core, even though the cancer cells were present in the entire core. The specimen had 10 hours fixation in 10% NBF. I could understand the uneven staining from inadequate fixation on large grossed in breast tissue, but 10 hours with needle core biopsies has always been more than sufficient. Does anyone have any ideas? We use Leica's ER and PR antibodies on the BOND. Joanne Clark, BAAS, HT(ASCP)CM Director of Histology P. (575) 622-5600 C. (575) 317-6403 F. (575) 622-3720 TF. (800) 753-7284 pcnm.com Disclaimer: This electronic message may contain information that is Proprietary, Confidential, or legally privileged or protected. It is intended only for the use of the individual(s) and entity named in the message. If you are not an intended recipient of this message, please notify the sender immediately and delete the material from your computer. Do not deliver, distribute or copy this message and do not disclose its contents or take any action in reliance on the information it contains. _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, or an employee or agent responsible for delivering the message to the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message, including any attachments. _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
