CD20 (Membrane Spanning 4-Domains A1)

Our case highlights the potential for diverse morphology in chordomas and emphasizes the utility of an IHC panel, including anti-brachyury antibody, to aid in diagnosis. Our case also demonstrates the importance of evaluating the clivus during postmortem CNS examination.

TLSs serve as accessible prognostic indicators in UTUC. Incorporation of TLSs into nomogram models significantly improves survival prediction and helps postoperative risk stratification. As this study involved internal model development, prospective external validation in a larger cohort is warranted.

The patient received high-dose methotrexate-based chemotherapy according to the DeAngelis protocol, combined with rituximab, selected to optimise disease control while minimising the neurotoxicity associated with whole-brain radiotherapy. She achieved visual recovery to 6/9 and regression of the central nervous system (CNS) lesion. This case underscores the importance of recognising pathognomonic retinal signs and employing molecular immunophenotyping to enable timely, life-saving, neuro-sparing therapy.

P3, N=423, Completed, Chipscreen Biosciences, Ltd. | Active, not recruiting --> Completed

P1, N=36, Completed, Otsuka Pharmaceutical Co., Ltd. | Active, not recruiting --> Completed | Trial completion date: Mar 2025 --> Jan 2026

Post-CAR-T salvage therapy consisted of heterogeneous regimens, most commonly polatuzumab-bendamustine-rituximab and CD20 × CD3 bispecific antibody monotherapy. Response rates and short-term survival varied across approaches, with bispecific antibody monotherapy having the highest ORR (65%) and favorable 1-year outcomes (OS 56%; EFS 43%). In this contemporary multicenter cohort, salvage therapy after CAR-T failure achieved objective but often short-lived responses, with outcomes driven by relapse timing after CAR-T infusion rather than the line of prior CAR-T therapy, supporting individualized treatment selection in this high-risk setting.

P2, N=0, Withdrawn, Memorial Sloan Kettering Cancer Center | N=27 --> 0 | Trial completion date: Aug 2028 --> Mar 2026 | Recruiting --> Withdrawn | Trial primary completion date: Aug 2028 --> Mar 2026

P2, N=68, Active, not recruiting, Alliance for Clinical Trials in Oncology | Trial completion date: May 2028 --> May 2029 | Trial primary completion date: May 2026 --> Apr 2027

P3, N=156, Not yet recruiting, Ruijin Hospital

The patient was treated with six cycles of rituximab-bendamustine, resulting in complete regression of the nasopharyngeal mass and reduction in splenomegaly, with minimal residual lymphadenopathy and good clinical and biological tolerance. This case highlights the importance of considering CLL in the differential diagnosis of nasopharyngeal masses and emphasizes the role of combined imaging, histology, and immunophenotyping in establishing an accurate diagnosis and guiding appropriate management.

Post-treatment positron emission tomography/computed tomography (PET/CT) confirmed complete metabolic remission. This case highlights an exceptionally rare and aggressive presentation of HGBL-NOS with extensive extranodal dissemination involving 11 organs in the absence of lymphadenopathy, underscoring the importance of early integrated diagnostic approaches and prompt initiation of intensive chemotherapy to achieve favorable outcomes.

This study provides exploratory genetic and clinical evidence supporting a causal, protective role for specific peripheral and tumor-infiltrating B-cell subsets in PTC. Naïve B cells and CD27+ unswitched memory B cells are linked to indolent tumor behavior and favorable prognosis, highlighting their potential as biomarkers for risk stratification and non-invasive monitoring in PTC management.