Q&A column, 6/15
June 2015—Can IgA-deficient patients who require transfusion receive blood only from donors who are also IgA deficient? Patients who are IgA deficient and do not have a history of a prior anaphylactic transfusion reaction …
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
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Q&A column
Q&A column, 5/15
May 2015—Q. I am a pathologist practicing in a small community hospital. I was involved with a patient who was declared brain-dead and subsequently designated a donor of multiple organs. The organ procurement agency ordered additional testing during the two days before the organ harvest, including a CT scan of the chest. The latter revealed a solitary pulmonary nodule.
Q&A column, 4/15
April 2015—Why is the number 12 for lymph node retrieval in colon cancer protocol reporting not specific to the kind of resected specimens and whether a total colectomy was performed? We are establishing a list of maximum allowable dilutions for our clinical chemistry analytes. Are you aware of any reference that would list absurd or invalid values for such analytes, i.e. the endpoint that would determine the most dilutions we would have to do for the highest possible value for that analyte?
Q&A column, 3/15
Are red blood cell parameters (Hb, MCV, MCH, MCHC, and RDW), especially a normal MCV, a reliable screening tool for ruling out beta thalassemia trait? Is the sickle solubility test reliable in ruling out sickle cell disorder? The absence of coagulation of seminal fluid has been attributed to bilateral congenital absence of the vas deferens and seminal vesicles due to the absence of the coagulation substrate (fibrinogen-like precursor).
Q&A column, 2/15
February 2015—Can our laboratory use ALK immunohistochemistry in lung adenocarcinoma to select patients for targeted therapy? ALK gene rearrangements (the most common of which results in expression of the EML4-ALK fusion protein) are found in approximately five percent of lung adenocarcinomas, and these ALK-rearranged tumors show marked clinical response to the tyrosine kinase inhibitor crizotinib.
Q&A column, 12/14
December 2014—What are the legal ramifications for medical technologists or medical laboratory technicians if they release results on suboptimal specimens on the insistence of physicians? What are the consensus recommendations for the diagnosis of eosinophilic esophagitis, eosinophilic gastroenteritis, and eosinophilic colitis? What is the clinical significance of increased lymphocytes in esophageal biopsy? Has there been a significant increase in diagnosed eosinophilic disorders over the past 10 or so years?
Q&A Column, 3/14
March 2014—Q. What are the actionable mutations in melanoma that warrant routine molecular testing? Who should be tested, and what specimen should be tested? Is there a role for stat BRAF testing and for next-generation sequencing?
Q&A Column, 12/13
December 2013—Our hematology standardization committee has asked us for input on performing cell counts on tubes No. 1 and No. 4 for cerebrospinal fluid. Each site in our system has a different protocol set up with its emergency department with regard to when a count is performed on tube No. 1 after counting tube No. 4. Some sites use RBC greater than five to automatically count tube No. 1 with or without an order to not delay patient care, whereas other sites use greater than 50 or greater than 200. Is there an established guideline recommendation for the number of RBCs seen on CSF tube No. 4 before doing an additional count on tube No. 1?
Q&A Column, 11/13
November 2013—Can you explain the logic behind doing a full workup for identification and sensitivity on multiple positive blood culture bottles on the same patient, drawn on the same day?