Webinars and Sponsored Roundtables — Register Now

Tuesday, June 9, 2026, 1:00–2:00 PM ET
In this webinar, we will examine how immune recognition after allogeneic HCT can influence leukemia relapse and disease progression. The session will highlight the clinical relevance of HLA loss of heterozygosity (LOH), approaches used for its detection, and how LOH findings may support transplant strategies, including considerations for donor selection in subsequent transplantation.

Webinar presenter Alberto Cardoso Martins Lima, PhD, Clinical consulting scientist in histocompatibility,
specializing in allogeneic hematopoietic cell transplantation (HCT) at IGEN/AFIP São Paulo and CHC/UFPR in Curitiba, Brazil

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Wednesday, June 24, 2026, 12:00–1:00 PM ET
Hear an expert discuss the expanded clinical utility of HER2 IHC scoring in metastatic breast cancer and its impact on your practice

Webinar presenter Michelle Shiller, DO, AP, CP, MGP, FACP, Baylor University Medical Center.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Wednesday, July 15, 2026, 1:00-2:00 PM ET
Hear an expert discuss how to integrate Kappa and Lambda in situ hybridization testing into your standard hematopathology workflow to accurately assess B-cell and plasma cell clonality. You will also gain the skills to recognize testing pitfalls in challenging reactive versus neoplastic proliferations and apply ancillary tools to resolve complex cases.

Webinar presenter Xiaojun Wu, MD, PhD, Assistant professor, Director of Hematopathology Section at NCR of Johns Hopkins Medicine Department of Pathology, SOM at Johns Hopkins University

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Subspecialties

Interactive Product Guides

Q&A column

Q&A column, 12/17

December 2017—Is a tumor embolus in the capsule of the lymph nodes considered metastasis? Does the lung, like the lymph nodes of the breast, have the concept of isolated tumor cells? As the staging rule is “when in doubt, understage,” would the case therefore be pT2, N0?

Q&A column, 11/17

November 2017—A laboratory owns chemistry analyzers from company X. Company X recommends that its customers use company X’s calibration material to perform their linearity studies, starting with the highest concentration and using the chemistry analyzer’s autodilution feature to provide a total of four measurable concentrations and a final zero point. Does this protocol fulfill CAP checklist requirements?

Q&A column, 10/17

October 2017—Our doctors request strep group A culture on throat specimens that are negative for rapid strep group A. On culture workup, if we have beta-hemolytic strep, we perform latex grouping only for group A strep; we report negative for GAS if latex is negative and positive if latex is positive. I think we should confirm all GAS with pyrrolidonyl arylamidase (PYR), and group and report other non-GAS. What do you think?

Q&A column, 9/17

September 2017— I received a sample with very high hemoglobin grossly. When I ran the sample on the Cell-Dyn Ruby, it was unable to calculate the parameters related to Hgb. I diluted the EDTA blood and ran the test again. In this scenario, should I multiply all the indices and Hgb-related parameters with the dilution factor? Which parameters should I multiply with the dilution factor?

Q&A column, 8/17

August 2017—Due to an ever-changing workforce, many new and inexperienced technologists are working in the microbiology lab and appear to be having difficulty interpreting cultures and troubleshooting when an organism in question may not be significant. As an example, a scant growth of Micrococcus was isolated and reported from a cerebrospinal fluid culture; it was not seen in the Gram stain and was negative for leukocytes. Contaminants had been noted on some of the media plates at this time as well, but many of these inexperienced technologists do not have the confidence to ignore obvious contaminants or suggest the possibility of contamination. Is there some guidance or troubleshooting tools for these situations?

Q&A column, 7/17

July 2017—A laboratory is considering the implementation of a laboratory test for the diagnosis of Zika virus infection. This test is currently labeled as a test under the issuance of an Emergency Use Authorization. What specific regulations regarding the use of this test, quality control, and proficiency testing apply when performing this test on patient specimens?

Q&A column, 6/17

June 2017—Our analyzer reported nucleated red blood cells of six, with no cellular interference flag. The technologist missed that the automated NRBC was six. When he performed the manual differential, he noted more than five NRBCs and performed a corrected count and certified it. Is it acceptable to report out the automated white blood cell value as well as the corrected WBC?

Q&A column, 5/17

May 2017—Is there any medical reason why a physician would ask the lab to run a complete blood count on cord blood? Does CAP checklist requirement HEM.23050 treat automated and manual differentials equally? That is, does the recommendation to report absolute counts apply also to manual differentials or only to automated differentials? What is the next step in resolving platelet clumping when it occurs in a citrate tube also?

Q&A column, 4/17

April 2017—Our laboratory receives requests for breast predictive marker testing (estrogen receptor, progesterone receptor, HER2, Ki-67) on biopsies of bone metastases. Is it appropriate to perform this testing on decalcified tissue? Is there a regulatory speed limit—whether a per day or a per hour “at the microscope” workload limit—on surgical pathology slide interpretations, similar to workload limits for cytology screening?

Q&A column, 3/17

March 2017—Our hospital system is implementing Sysmex instruments with a focus on the accuracy of the absolute white blood cell values—use of the absolute neutrophil count and immature granulocytes with the WBC as markers for septicemia. I then became aware that the hospital purchased the St. John Sepsis v14 protocol, which lists 10 percent bands as one of the markers for septicemia. The Rumke for 10 percent is 4–16. Using bands is not consistent with reducing manual differentials and is not an accurate parameter to use. Are there other protocols using WBC/ANC?