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Webinars and Sponsored Roundtables — Register Now

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Wednesday, September 23, 2026. 12 PM-1 PM ET
Roundtable presenters Dr. David Sacks MB, ChB, FRCPath, Chairman, Steering Committee National Glycohemoglobin Standardization Program (NGSP), and Priya Sivaraman, PhD, Senior Technical Product Manager, Tosoh Bioscience

CAP TODAY does not endorse any of the products or services named within. The roundtable is made possible by a special educational grant from Tosoh Bioscience Inc.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Thursday, September 24, 2026 11 AM-12 PM CT
This session explores the evolving role of RAS in precision oncology, from the biology of RAS mutations to the expanding landscape of targeted therapies. Through expert presentations, real-world case discussions, and interactive audience polling, participants will examine best practices for RAS biomarker testing across solid tumors, including lung, colorectal, and pancreatic cancers. The session will highlight practical considerations for tissue and liquid biopsy, strategies to address testing gaps, and the importance of multidisciplinary collaboration to ensure timely identification of patients who may benefit from RAS-targeted therapies.

Webinar presenters David Braxton, MD, Chief of Molecular Pathology Services, Hoag Family Cancer Institute & Hoag Memorial Hospital Presbyterian, and Carlos Becerra, MD, Research Director for Medical Oncology, Margaret Given Larkin Endowed Chair for Developmental Cancer Therapeutics, Hoag Memorial Hospital Presbyterian

CAP TODAY does not endorse any of the products or services named within. The webinar is made possible by a special educational grant from OncoLens and Diaceutics.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

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Wednesday, September 30, 2026. 1 PM-1:30 PM ET
Roundtable presenters John Longshore, PhD, Head of Scientific Affairs, Global Oncology Diagnostics, AstraZeneca, and Flora Berisha, MS, Executive Director, Global Head of Diagnostic Partnering and Development, Johnson & Johnson Innovative Medicine, and Mark D. Ewalt, MD, Associate Medical Director for Laboratory Operations, Diagnostic Molecular Pathology, Molecular Diagnostics Service, Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, and Isabel Preeshagul, DO, MBS, Thoracic Medical Oncologist, Memorial Sloan Kettering Cancer Center

CAP TODAY does not endorse any of the products or services named within. The roundtable is made possible by a special educational grant from Pillar Biosciences.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

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Thursday, October 1, 2026 1 PM-2 PM ET
This presentation will explore the value of in-house CGP, offer insights into the benefits and drawbacks of incorporation, and provide information about important practical factors when considering in-house implementation of CGP.

Webinar presenter Allison M. Cushman-Vokoun, MD, PhD, FCAP, Medical Director, Molecular Diagnostics and Personalized Medicine Laboratory, Director, Division of Diagnostic Molecular Pathology and Human Genetics, Henry F. Krous Professor of Pathology, University of Nebraska Medical Center

CAP TODAY does not endorse any of the products or services named within. The webinar is made possible by a special educational grant from Illumina.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

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Tuesday, October 20, 2026 11 AM-12 PM ET
Hear experts review the biological and clinical significance of the HER2 expression continuum in breast tissue, providing a clearer understanding of how these variations might impact diagnosis, and discuss the emerging importance of documenting HER2-low and HER2-ultralow categories using a validated IHC assay.

Webinar presenters Keith Wharton, MD, PhD, Global Medical Affairs Leader–Pathology, Roche Diagnostics Solutions, and Hannah Y. Wen, MD, PhD, Director, Breast Pathology Fellowship, Associate Team Leader, Breast Pathology Team, Attending Pathologist, Memorial Sloan Kettering Cancer Center

CAP TODAY does not endorse any of the products or services named within. The webinar is made possible by a special educational grant from Roche.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Register Now

Tuesday, November 3, 2026 1 PM-2 PM ET
Hear an expert discuss the challenges of detecting NRG1 fusions and how RNA-based testing can support more comprehensive fusion identification in clinical practice.

Webinar presenter Benjamin Weinberg, MD, Associate Professor of Medicine and Attending Physician
specializing in gastrointestinal medical oncology

CAP TODAY does not endorse any of the products or services named within. The webinar is made possible by a special educational grant from Diaceutics.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Register Now

Subspecialties

Interactive Product Guides

Columns

Anatomic pathology selected abstracts

April 2025—Claudin-18.2 (CLDN18.2) is a biomarker for locally advanced or metastatic gastric and gastroesophageal junction adenocarcinomas that may respond to targeted therapy with monoclonal antibodies directed against CLDN18.2. Despite successful testing in clinical trials, no practical testing guidelines had been proposed at the time the authors’ article featured herein was published. Several preanalytical and analytical variables may interfere with CLDN18.2 staining interpretation. Therefore, the authors provided practical guidance on CLDN18.2 testing and scoring in gastric and gastroesophageal junction adenocarcinomas. They established criteria pertaining to sample characteristics, analytical requirements, staining evaluation, and reporting.

Pathology informatics selected abstracts

April 2025—Hirschsprung disease is characterized by the absence of ganglion cells in the intestinal wall. Determining whether ganglion cells are present in an effort to identify Hirschsprung disease is a cumbersome task for pathologists that may require frozen section analysis; histopathologic assessment of a rectal biopsy specimen (the gold standard); use of special stains, such as AChE; IHC analysis of calretinin or S100; or molecular and genetic testing. To assist pathologists with evaluating challenging frozen sections, the authors developed an artificial intelligence (AI) solution designed to enhance the detection of ganglion cells during intraoperative consultation. The AI model was trained using a mixed data set that combined 366 frozen section and 302 formalin-fixed, paraffin-embedded H&E-stained slides procured from 164 patients across three medical centers in Turkey. After scanning the slides, pathologists helped train the deep learning model by annotating ganglion cells present in the whole slide images (WSI).

Molecular pathology selected abstracts

April 2025—Chronic kidney disease is more common in people of African ancestry, with Americans of African descent having four times the risk compared with Americans of European descent. This disparity is largely due to the G1 and G2 genetic variants in the APOL1 gene, which increase the risk of developing chronic kidney disease (CKD) when inherited in a homozygous or compound heterozygous pattern. These variants, exclusive to African populations, likely evolved over 10,000 years ago due to their protective role against African sleeping sickness. The prevalence of these variants varies across sub-Saharan Africa, and data on their connection to CKD in African populations are limited.

Q&A column

April 2025
Q. Is it important to perform a manual differential on a CBC with a very low or very high mean corpuscular volume (MCV) result, or will a smear review/scan for RBC morphology suffice? Read answer.

Q. Do exact formalin fixation times and cold ischemia times have to be listed in the final pathology report for immunohistochemistry predictive marker testing so long as they are traceable on internal records (e.g. processor times, container label times)? Or is it sufficient to state that the formalin fixation and cold ischemia times meet ASCO/CAP recommendations of less than or equal to one hour cold ischemia time and greater than six hours but less than 72 hours formalin fixation time?

The only variable not in our final reports is our end of formalin time, but it is traceable through internal laboratory records. We document in the final report the time the tissue was removed from the body and the time it was placed in formalin. Then a blanket statement of “less than or equal to one hour cold ischemia time and greater than six but less than 72 hours formalin fixation time” is inserted in the comment when it applies. Read answer.

Newsbytes

April 2025—UPMC Enterprises has introduced Ahavi, a real-world data platform on which clinical researchers, data scientists, and developers of artificial intelligence can validate AI solutions before the University of Pittsburgh Medical Center deploys them. The platform provides de-identified real-world health care data from more than 80 University of Pittsburgh Medical Center sources. Comprehensive structured and unstructured data have been sourced from approximately 5 million patients across 24 hospitals in order to train and refine AI models and develop predictive analytics and clinical decision-making tools.

Put It on the Board

April 2025—The U.S. District Court for the Eastern District of Texas ruled on March 31 in favor of the laboratory plaintiffs in the two consolidated cases challenging the validity of the Food and Drug Administration’s final rule on laboratory-developed tests. The plaintiffs in the cases were the American Clinical Laboratory Association, Association for Molecular Pathology, HealthTrackRX and HealthTrackRX Indiana, and pathologist Michael Laposata, MD. The ruling by Judge Sean D. Jordan ordered that the plaintiffs’ motions for summary judgment be granted. The final rule that would have regulated LDTs as medical devices under the Federal Food, Drug and Cosmetic Act was vacated.

From the President’s Desk

March 2025—The number of payment and coverage challenges coming from private payers and being experienced by pathologists, our clinical labs, and our patients has exploded in recent years. The CAP has been tracking this increase closely and the problem seems to be getting worse by the month.

Clinical pathology selected abstracts

March 2025—Generative artificial intelligence is now readily available and has created a plethora of interest in health care, including in pathology and laboratory medicine. Unlike traditional AI, generative AI (Gen­AI) doesn’t rely solely on historical data to make predictions but instead uses patterns within historical data to create entirely new data. Excitement over Gen­AI must be weighed against the reality of maintaining human control over the technology and interpreting the data. The use of Gen­AI in health care may include not only streamlining administrative tasks but also performing safety critical clinical functions, such as image-based diagnosis. The risk-based approach and quality management of Gen­AI must be managed individually for each situation.

Anatomic pathology selected abstracts

March 2025—Invasive lobular carcinoma is characterized by loss of E-cadherin expression and CDH1 gene inactivation. The reliability and reproducibility of diagnosis for this tumor type is suboptimal and could be improved by better understanding the histomolecular and clinical heterogeneity of such tumors. The authors analyzed the relationship between the presence, type, or position of CDH1 mutations, E-cadherin expression, and clinicopathological features, including outcome, in a retrospective series of 251 primary invasive lobular carcinomas (ILC) with a median follow-up of 9.5 years. The mutational status of CDH1 (the gene encoding E-cadherin) was determined by RNA sequencing of frozen tumor samples. E-cadherin immunohistochemistry was performed with antibodies directed against the intracellular (clone 4A2C7) and extracellular (clone NCH38) domains.

Molecular pathology selected abstracts

March 2025—Genomic imprinting is an epigenetic process that results in expression of only one copy of a gene—either from a person’s mother or father—while the other parent’s copy of the same gene is silenced. A cluster of genes affected by imprinting on the proximal part of the long arm of chromosome 15 (15q11-q13) are associated with syndromic conditions. Deficient expression of the maternally inherited copy of UBE3A in this region results in Angelman syndrome, which is characterized by severe developmental delay, gait ataxia, and an apparent happy demeanor with profuse smiling, frequent laughing, and excitability. In contrast, deficient expression of paternally inherited genes in this region causes Prader-Willi syndrome. Clinical features of this condition can vary but often include developmental delay, short stature, hyperphagia, and obesity.

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