Tag Archives: Cancer (see also Leukemia

January 2024—Much has been said and written about scoring HER2-low breast cancer, and it has its difficulties. But there are steps and tools to support scoring, and Savitri Krishnamurthy, MD, last fall shined a light on them and several HER2-low breast cancer-related studies.

October 2023—For molecular testing in oncology, the choice is often fast or slow. PCR-based platforms are rapid, and comprehensive genomic profiling by next-generation sequencing is slower, and each has its pros and cons.

October 2023—Next-generation sequencing of tumor tissue has important implications in solid and hematologic malignancies because it can identify genomic variants that provide diagnostic, prognostic, and predictive information to guide clinical management. Variants identified on tumor sequencing can be classified as somatic (acquired after conception) or inherited through germline.

August 2023—Seemingly channeling the inspiration of Magritte and his famous pipe, pathologists are painting a new picture of what has long been an everyday object in their own world: HER2. To paraphrase the master: Ceci n’est pas facile. For years, HER2 testing in breast cancer has seemed self-evident, ever since the HER2-targeted therapy trastuzumab and its companion diagnostic arrived on the scene a quarter of a century ago. Pathologists became comfortable using immunohistochemistry to identify 3+ cases and turning to in situ hybridization techniques to sort through less obvious ones. But early last summer, a variant of the drug, trastuzumab-deruxtecan (T-DXd), shook up that routine. When researchers presented results from the Destiny-Breast04 study at the 2022 ASCO annual meeting, showing that T-DXd significantly improves survival in so-called HER2-low metastatic breast cancer, attendees responded with a minutes-long standing ovation. They then returned from the meeting like evangelicals from the revival tent.

August 2023—We discuss in this article a common problem that all cytopathologists come across frequently in their practice: tumors of unknown primary origin involving body fluids and other sites. Metastatic tumor cells can disseminate and colonize discontinuous secondary body sites.¹ Such tumor metastases may be the patient’s initial presenting complaint to a family physician for deep-seated tumor primaries such as ovaries, pancreas, liver, and certain non-obstructive gastrointestinal tumors.

August 2023—Accurate and timely diagnosis is the cornerstone of effective patient care, particularly in the field of pulmonary pathology. To address the challenges health care professionals face in diagnosing and reporting respiratory conditions, the International Academy of Cytology, together with the International Agency for Research on Cancer, recently developed the World Health Organization Reporting System for Lung Cytopathology

February 2016—A streak of sibling rivalry emerges when experts ponder progress in the field of bladder cancer. Whether it’s new markers or therapies, funding or advocacy, advances have come slowly, and the disease has long labored in the shadow of others. “Urologic malignancies in general lag behind, compared to breast cancer and other tumor types, like colon and lung, where we’ve been envious for a while,” says George Netto, MD, professor of pathology, urology, and oncology and director of surgical pathology molecular diagnostics, Johns Hopkins University School of Medicine.