Webinars and Sponsored Roundtables — Register Now

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

Thursday, October 29, 2026, 1 PM-2 PM ET
Hear an expert discuss the evolving role of PD-L1 testing in HNSCC and ovarian cancer.

Webinar presenter Georgios Deftereos, MD, Professor of Pathology, Associate Director of the Clinical Cancer Genomics Laboratory, Director of Molecular Cytopathology, University of California, San Francisco

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

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

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

Monday, November 16, 2026, 12:30 PM-2 PM ET
Hear experts discuss a multidisciplinary approach to oncopathology for HER2
assessments for solid tumors in the absence of a companion diagnostic.

Webinar presenters Funda Meric-Bernstam, MD, Chair, Department of Investigational Cancer Therapeutics Medical Director, Institute for Personalized Cancer Therapy, The University of Texas MD Anderson Cancer Center, Houston, Texas, and Emina E. Torlakovic, MD, PhD, College of Medicine, University of Saskatchewan, Canadian Biomarker Quality Assurance, Saskatoon, Saskatchewan, Canada, and Carol Cheung, MD, PhD, JD, FRCPC, Deputy Director, Canadian Biomarker Quality, Assurance—Programme canadien d’assurance de la qualité des biomarqueurs

CAP TODAY does not endorse any of the products or services named within. This program is being sponsored by Daiichi Sankyo, Inc. and AstraZeneca. The speaker is being compensated for the presentation. The program is not CME accredited and may not be used for CME accreditation.

Moderated by: Bob McGonnagle, Publisher, CAP TODAY

Subspecialties

Interactive Product Guides

Columns

Put It on the Board

September 2025—CAP president Donald Karcher, MD, in a July 25 letter urged the chairs and ranking members of the Senate and House appropriations subcommittee on labor, health and human services, education, and related agencies to apply pressure to obligate and award already approved funding for the CDC Division of Cancer Prevention and Control. “Even though Congress approved FY 2025 funding in March, the CDC has not issued notice of awards to provide funding to state and local health departments for the remaining FY 2025 funds,” he said. “State and local health departments are challenged to continue their work without knowing if they will be reimbursed. State health departments and grantees are on the verge of shutting down programs and furloughing staff.”

Letters

September 2025—It has come to the attention of the American Association of Pathologists’ Assistants that some pathologists and pathology fellows assume the pathologists’ assistant profession is widely licensed, since we are comparable to the nationally licensed physician associates. This is a misconception that I, chair of the AAPA legislative subcommittee, and the AAPA Board of Trustees would like to address with the pathology community.

From the President’s Desk

August 2025—I’ve written in this column many times that pathologists should be leaders of the laboratory. But all of the leadership skills we develop through that role also make us a good fit for many other leadership positions in our health care institutions and beyond. I have met CAP members who are chief medical officers, chief quality officers, presidents of their medical staff, and even CEOs of hospitals and health care networks. The current commander of one of the largest military medical centers in the U.S. is a pathologist.

Clinical pathology selected abstracts

August 2025—The Accreditation Council for Graduate Medical Education (ACGME) oversees graduate medical education and closely monitors resident wellness. In 2017, the ACGME published findings from a national study outlining the causes of death among residents and fellows from 2000 through 2014. The most common overall cause of death was malignant neoplasm, and it was the leading cause of death among female residents and fellows. Suicide was the leading cause of death for male residents and the second leading cause for females. Twenty-three percent of deaths by suicide occurred in the first academic quarter of trainees’ first year in their medical programs.

Anatomic pathology selected abstracts

August 2025—Certain subtypes of colorectal carcinoma pose diagnostic challenges in daily practice due to sometimes overlapping morphologic and immunohistochemical features and are associated with worse prognoses than poorly differentiated adenocarcinoma not otherwise specified (PDA-NOS). Other variants of poorly differentiated colon cancers with solid growth patterns that have, anecdotally, been recognized as posing diagnostic challenges include large cell neuroendocrine carcinoma (LCNEC), medullary carcinoma (MC), undifferentiated carcinoma (UC), and lymphoepithelioma-like carcinoma (LELC). The authors conducted a study to determine survival outcomes between patients with poorly differentiated adenocarcinoma and those with a variant carcinoma morphology that may affect prognosis. They also analyzed interobserver agreement among gastrointestinal pathologists at their institution in subclassifying poorly differentiated colorectal carcinoma. All consecutive patients with diagnoses of PDA-NOS, MC, LCNEC, UC, and LELC between July 2018 and July 2023 were included.

Newsbytes

August 2025—Recognizing the value of researching options before purchasing a big-ticket item, the College of American Pathologists has developed the AI Playground to help pathologists assess artificial intelligence tools before going all-in on a technology that may not end up suiting their needs, among other potential issues. The playground will offer cutting-edge AI tools that pathologists can test-drive from the comfort of their own laboratories using simulated data sets on a platform designed specifically for that purpose. It will be available to CAP members at no charge and accessible via the CAP website after it is debuted in the CAP Innovation Hub and the College’s booth at CAP25, in Orlando, next month.

Molecular pathology selected abstracts

August 2025—Childhood malignancies such as Wilms tumor—the most common type of kidney cancer in children—exhibit very few DNA changes when tested by traditional sequencing methods. Some of these types of tumors have fewer genetic anomalies than age-matched normal tissue. This raises the question, How can such genetically “quiet” malignancies emerge and progress without conventional driver mutations? To address this question, the authors employed high-resolution, ultra-deep sequencing to determine if hypomutation in juvenile kidney cancers characterized by a paucity of mutations, specifically Wilms tumor, is genuine or an artifact of conventional analytical constraints. By applying high-resolution duplex sequencing (Nanoseq) to Wilms tumors and matched normal kidneys from six pediatric patients, including four infants and two school-age children, the authors showed that standard bulk whole genome sequencing significantly underestimates the mutational burden in tumors from infants.

Q&A column

August 2025
Q. We manage multispecialty laboratories in multiple hospital locations. Most of the laboratories function on the traditional model of compartmentalized specialty-based testing units that offer routine and specialized services with their own dedicated space, equipment, and personnel. There is a future plan to establish an offsite centralized referral lab, but to improve operational efficiency and cost savings sooner, management is considering consolidating testing services at each location. What factors should be considered while planning the consolidation, keeping in mind the plan to establish a centralized reference lab? Should the testing services that will eventually be performed in the reference lab be excluded from the current consolidation plan? And how should we manage operations during the transition phase, i.e. once consolidation is completed but prior to the reference lab implementation? Read answer.

Q. We have been discussing supervisory review of test results that are manually entered into our laboratory information system (i.e. a test result not sent via interface from an analyzer or autoverified). Examples are a urine hCG performed on a kit cassette or a manual differential performed on a CBC, entered directly into the LIS by the performing technologist. Do manual test results require supervisory review, or is it only higher-complexity tests (like the differential) performed by a medical laboratory technologist that require such review? If review is required, who can review and what is the recommended time frame? Read answer.

Put It on the Board

August 2025—In a position statement released in July, the CAP urged policymakers to consider scientific and logistical evidence and to protect the integrity and safety of the national blood supply. The statement was issued in response to legislation proposed in several states that would require blood product labeling based on donor vaccination status or mandate hospitals and blood collectors to honor requests for directed and autologous donations. Misinformation surrounding COVID-19 and mRNA vaccines has led to a growing number of patient requests for blood transfusions exclusively from unvaccinated donors.

Shorts on Standards: ISO/TS 23824 can help take anatomic pathology quality to another level

July 2025—The International Organization for Standardization (ISO) published a new technical specification, ISO/TS 23824 (Medical Laboratories—Guidance on Application of ISO 15189 in Anatomic Pathology), on the application of ISO 15189 to anatomic pathology. Although structured around the clauses of ISO 15189, the document offers useful guidance, ideas, and concepts applicable to any AP laboratory, including every AP laboratory in the United States that has to comply with CLIA ’88 or CAP Laboratory Accreditation Program requirements.