• Objectively Measured Photoaging and Skin Cancer in Organ Transplant Recipients.
    2 weeks ago
    Solid organ transplant recipients (SOTRs) have an increased risk of keratinocyte skin cancer (KC) due to lifelong immunosuppression. Photoaging, reflecting cumulative ultraviolet (UV) exposure, may serve as a biomarker of KC risk. This study characterized objective photoaging features in SOTRs and their association with age, photodamage, photoaging phenotype, actinic keratoses (AKs) and KC history. In 251 SOTRs, VISIA imaging showed significant age-related increases in photoaging features; median red- feature scores reflecting erythema and telangiectasia were 44 AU (arbitrary units) in patients >60 vs 22 AU in those <60. Higher clinical photodamage severity corresponded to higher VISIA scores, especially red- features and visible- spots. The atrophic photoaging phenotype, observed in 60 % of patients, showed higher red- features (40 AU) than the hypertrophic type (27 AU). Patients with AKs had elevated UV- spots and red- features. A history of KC (32 % of participants) was associated with older age, longer time since transplantation, fairer skin type, more severe photodamage, higher VISIA scores, especially red- features (45 AU vs 29 AU) and greater pigmentation on sun-exposed sites. Objective imaging identified photoaging features associated with cumulative UV damage. Further studies should evaluate their predictive value for KC development to improve individualized risk stratification and surveillance strategies in this high-risk population.
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  • From Real World Data to Real Impact: A Co-Medication Framework for Lung Cancer to Advance DDI Assessment and Patient-Centric Drug Development.
    2 weeks ago
    Lung cancer predominantly affects older adults who already experience comorbidities and are at increased risk of drug-drug interactions (DDIs) due to polypharmacy. Traditional DDI assessments often do not fully capture complex co-medication patterns observed in real-world practice due to the risk of introducing confounding factors. This study used U.S. Optum claims data from 2019 to 2024 to characterize co-medication patterns in predominately non-small cell lung cancer (NSCLC) patients and map enzyme- and transporter-mediated liabilities across commonly used medications, chemotherapy agents, and biomarker-driven therapies. Potential DDI liabilities were further prioritized using a semi-quantitative clinical framework based on perpetrator strength, substrate sensitivity, narrow therapeutic index status, and available evidence. Frequently used medications included disease-specific supportive therapies such as ondansetron and dexamethasone, as well as treatments for common U.S. comorbidities such as cardiovascular and endocrine disorders. Many of the co-medications were substrates, inhibitors, and inducers of pathways critical for NSCLC treatments such as CYP3A, CYP2D6, P-gp, and OATP1B and additional risks were identified when giving treatments with acid-reducing agents or QT-prolonging drugs. These findings demonstrate how integrating real-world data (RWD) can strengthen DDI assessment by improving clinical trial design, informing risk-mitigation strategies, and supporting more patient-centric drug development.
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  • The Role of Dysphagia in Depression, Anxiety, and Symptom Clusters Among Nasopharyngeal Carcinoma Survivors After Intensity-Modulated Radiotherapy: A Latent Profile and Mediation Analysis Based on a Cross-Sectional Study.
    2 weeks ago
    To identify distinct dysphagia profiles among nasopharyngeal carcinoma (NPC) survivors and to examine the mediating roles of depression and anxiety in the relationship between these profiles and broader symptom clusters. This study hypothesized that subgroup membership would have differential effects on symptom clusters through psychological mediating pathways. The study aimed to provide evidence for the development of precision symptom management interventions.

    In this cross-sectional study, 271 survivors recruited from a tertiary cancer hospital in Guangzhou (January 2023-December 2024) completed standardized assessments of dysphagia, psychological status, and symptoms. Latent profile analysis (LPA) identified subgroups of survivors with distinct dysphagia profiles; exploratory factor analysis extracted symptom clusters, multivariable linear regression examined associated factors, and parallel mediation analysis with bootstrap resampling tested the mediating effects.

    Dysphagia prevalence among NPC survivors was 57.2%, with the highest prevalence (72.7%) observed among survivors within 6 months post-treatment. LPA identified two survivor subgroups with distinct dysphagia profiles: a high dysphagia burden subgroup (51.0%) and a low dysphagia burden subgroup (49.0%). Three symptom clusters were extracted: Systemic/Psychological, Oral/Swallowing, and Gastrointestinal/Neuropathic. Membership in the high dysphagia burden subgroup and anxiety significantly predicted all clusters (p < 0.05). Mediation analyses revealed that dysphagia subgroup membership had significant total effects on all clusters (p < 0.001). Depression showed statistical mediation for the Systemic/Psychological and Oral/Swallowing clusters, whereas anxiety showed statistical mediation for the Systemic/Psychological and Gastrointestinal/Neuropathic clusters.

    NPC survivors exhibit distinct dysphagia burden profiles, including high- and low-burden subgroups. A high dysphagia burden profile is directly associated with a greater overall symptom burden and indirectly contributes to more severe symptom clusters via depression and anxiety. These findings highlight the need for early identification of survivors within this high-risk subgroup, and the integration of swallowing rehabilitation with psychological interventions for comprehensive symptom management.
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  • Clinicopathological Features and Exploratory Outcome Associations of Bone Marrow Fibrosis in Newly Diagnosed Acute Lymphoblastic Leukemia: A Single-Center Retrospective Cohort Study.
    2 weeks ago
    Bone marrow fibrosis (MF) reflects stromal remodeling and has been associated with treatment resistance and adverse outcomes in hematologic malignancies; however, its clinical significance in acute lymphoblastic leukemia (ALL) remains uncertain. We retrospectively analyzed 103 patients with newly diagnosed ALL and documented MF grades between 2018 and 2023, comparing patients with MF grades 0-1 and those with MF grades 2-3. Higher-grade MF was present in 50 patients (48.5%). B-ALL accounted for a greater proportion of cases in the MF 2-3 group than in the MF 0-1 group (94.0% vs. 69.8%; nominal p = 0.002), and this difference remained statistically significant after false discovery rate correction. No mutation-level difference between the MF groups remained significant after correction for multiple comparisons. In Cox regression, MF 2-3 was associated with a lower observed hazard of death compared with MF 0-1 (adjusted HR, 0.26; 95% CI, 0.12-0.55; p < 0.001). A similar association was observed in a sensitivity analysis restricted to patients with B-ALL (adjusted HR, 0.30; 95% CI, 0.13-0.70; p = 0.005). Given the retrospective design, limited number of deaths, and potential residual confounding, this unexpected inverse association should be considered exploratory and should not be interpreted as evidence of a biologically protective effect of MF. In conclusion, higher-grade MF was common in newly diagnosed ALL and was associated with B-lineage disease. An unexpected inverse association between MF grade and observed mortality was identified in this cohort and persisted in the B-ALL-restricted sensitivity analysis. External validation is required before MF can be considered for prognostic stratification or treatment decision-making.
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  • Checkpoint Inhibitor-Treated Merkel Cell Carcinoma With Cytokeratin 20 (CK20)-Negative Metastatic Immunophenotypic Divergence: Diagnostic and Therapeutic Implications.
    2 weeks ago
    An octogenarian woman with Merkel cell carcinoma of the right upper arm, staged as Stage IIIA at initial diagnosis, underwent wide local excision with sentinel lymph node biopsy followed by adjuvant radiation therapy. She later developed regional nodal recurrence requiring axillary dissection, which was confirmed by biopsy as metastatic Merkel cell carcinoma, requiring axillary dissection. Despite subsequent treatment with pembrolizumab, she developed progressive metastatic disease one year later, with new hepatic and pulmonary lesions. Biopsy of a hepatic lesion demonstrated a poorly differentiated neuroendocrine carcinoma with a high proliferative index. Notably, immunohistochemistry showed absence of cytokeratin 20 (CK20) expression, raising diagnostic uncertainty regarding lineage confirmation in the setting of CK20-negative metastatic disease. Given the clinical context, the patient was treated with carboplatin and etoposide per established guidelines for high-grade neuroendocrine tumors; however, she exhibited continued disease progression and ultimately transitioned to hospice care, where she died. This case highlights the diagnostic and therapeutic challenges of advanced Merkel cell carcinoma in the setting of immune checkpoint inhibitor exposure, particularly the potential for loss of the canonical Merkel cell carcinoma immunophenotype at metastatic sites following such therapy. It underscores the importance of integrating clinical history, treatment exposure, and morphologic findings when evaluating atypical metastatic neuroendocrine neoplasms, especially when canonical immunohistochemical markers such as CK20 are absent.
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  • Zinner Syndrome Associated With a Neuroendocrine Tumor of the Prostate Gland and Contralateral Seminal Vesicle: A Case Report.
    2 weeks ago
    Zinner syndrome is a rare congenital malformation of the urogenital system characterized by the triad of unilateral renal agenesis, ipsilateral seminal vesicle cyst, and ipsilateral ejaculatory duct obstruction. A variant of Zinner syndrome is present when, instead of a seminal vesicle cyst, there is agenesis of the ipsilateral seminal vesicle. Although Zinner syndrome has been associated with urogenital neoplasms in some cases, to our knowledge, no case of a patient with Zinner syndrome and a contralateral neuroendocrine tumor (NET) has been previously described. The patient is a 26-year-old man who developed urinary retention due to a tumor of the right seminal vesicle infiltrating the prostate and obstructing the prostatic urethra. Abdominal and bladder MRI showed dysgenesis of the left kidney, seminal vesicle, and ejaculatory duct, as well as a mildly contrast-enhancing mass of the right seminal vesicle infiltrating the adjacent prostate. Gallium-68 PET-CT showed increased somatostatin receptor (SSTR) expression in the right seminal vesicle. Histologically, it was a well-differentiated NET with infiltrates of epithelial tumor cells that were positive for chromogranin, synaptophysin, and CD56. Chromogranin was also increased in the serum. The patient underwent radical prostatectomy, and it was decided not to proceed with chemotherapy or radiotherapy. Zinner syndrome may be associated with a contralateral NET of the genitourinary tract. Therefore, patients with Zinner syndrome should be regularly followed up to avoid overlooking a co-occurring malignancy.
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  • Declining trends but persistent disparities in cervical cancer mortality in the United States, 1999-2023.
    2 weeks ago
    Cervical cancer is largely preventable through effective screening and human papillomavirus (HPV) vaccination; however, mortality disparities remain a persistent public health challenge in the United States. This study aimed to examine long-term trends and socio-demographic and geographic inequalities in cervical cancer mortality.

    We conducted a population-based study of cervical cancer mortality among U.S. women aged ≥25 years from 1999 to 2023 using national mortality data from the CDC WONDER database. Age-adjusted mortality rates (AAMRs) were calculated using the 2000 U.S. standard population. Temporal trends were evaluated using Joinpoint regression to estimate annual percent changes (APCs) and average annual percent changes (AAPCs). Analyses were stratified by census region, race/ethnicity, urbanization level, age group, and state. Age restrictions were harmonized across bridged-race and single-race population estimates, and corrected estimates were used for trend analyses.

    Overall cervical cancer mortality declined substantially from 1999 to 2023, with the female-specific AAMR decreasing from 4.37 to 2.09 per 100,000 women (AAPC, -3.27%; 95% CI, -3.81 to -2.73). Despite this overall decline, substantial disparities persisted. Mortality rates remained consistently higher in the Southern region and lowest in the Northeast, which showed the greatest reduction over time (AAPC, -4.23%; 95% CI, -5.31 to -3.13). Non-Hispanic Black women experienced persistently higher mortality compared with other racial and ethnic groups, and women residing in nonmetropolitan areas had elevated mortality rates. Considerable geographic variation was observed across states, with mortality rates in higher-burden states approximately two- to four-fold higher than those in lower-burden states. Sensitivity analyses restricted to women aged ≥25 years confirmed consistent long-term mortality trends between bridged-race and corrected single-race estimates. No evidence of an accelerated decline around 2019/2020 was identified, and the previously reported post-2019 acceleration was attributable to inconsistent age restrictions during data extraction rather than a true epidemiological change.

    Although cervical cancer mortality has declined significantly in the United States over the past two decades, substantial socio-demographic and geographic disparities persist. These findings highlight the need for targeted public health strategies to improve equitable access to screening, HPV vaccination, and timely treatment, particularly in high-risk populations and underserved regions.
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  • Integration of MRI radiomics with immune profiling to predict response to CDK6 inhibitors in high-grade glioma.
    2 weeks ago
    Predictive biomarkers are needed to identify patients with high-grade glioma who benefit from cyclin-dependent kinase 6 (CDK6) inhibition. We hypothesized that an integrated Radiomics-Immune Score (R/I-Score), combining MRI-derived tumor heterogeneity with peripheral immune profiling, would predict progression-free survival (PFS) benefit from CDK6 inhibitor-containing therapy (CDK6i).

    We conducted a two-center, retrospective cohort study utilizing longitudinal data from departmental neuro-oncology registries. The final study population comprised 116 adult patients with measurable disease who had undergone baseline contrast-enhanced MRI within 21 days prior to treatment initiation. To ensure methodological rigor and internal consistency, we adopted a two-stage study design. In the first stage (Biological Modeling), the total cohort (N = 116) was partitioned into a training set (n = 81) and an independent testing set (n = 35) to develop and validate the R/I-Score. In the second stage (Clinical Validation), we addressed the selection bias inherent in observational data by performing 1:2 Propensity Score Matching (PSM). This yielded a balanced analytical cohort of 108 patients (36 treated with CDK6i and 72 concurrent contro\ls). The primary endpoint was the treatment-by-biomarker interaction for progression-free survival (PFS), specifically assessing the R/I-Score's ability to stratify therapeutic responders.

    In the overall matched cohort (N = 108), patients treated with CDK6i exhibited numerical but statistically non-significant trends toward improved efficacy compared to concurrent controls in terms of median PFS (4.8 vs. 3.5 months; HR 0.72, P = 0.091), objective response rate (19.4% vs. 9.7%; P = 0.180), and disease control rate (44.4% vs. 30.6%; P = 0.165). The Combined R/I-Clinical Model demonstrated exceptional diagnostic performance in the independent testing cohort (N = 108), achieving a Treatment-Effect AUC of 0.97 and excellent calibration. In the PSM efficacy analysis, the R/I-Score successfully identified a distinct responder subpopulation: patients with a High R/I-Score derived significant survival benefit from CDK6i compared to concurrent controls (HR 0.48; 95% CI 0.25-0.91; P = 0.008), whereas those with a Low R/I-Score did not (HR 1.05; 95% CI 0.58-1.92). The interaction between the R/I-Score and treatment was statistically significant (Pinteraction = 0.012). Furthermore, High R/I-Score patients achieved superior objective response rates (33.3% vs. 5.6%) and sustained treatment duration (median 6 vs. 3 cycles) without increased toxicity (Grade ≥3 AEs: P>0.05). Biological interpretability analysis revealed that the score was driven by tumor morphological complexity and NK/CD8+ T-cell infiltration.

    The multi-modal R/I-Score serves as a robust, non-invasive predictive biomarker for CDK6i therapy in GBM. By selecting patients based on specific radiomic-immune phenotypes, this tool facilitates precision oncology, maximizing therapeutic efficacy while avoiding futile treatment in non-responders.
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  • Comparative Evaluation of Preoperative Ultrasonography and Mammography in Breast Carcinoma: Correlation With Intraoperative and Histopathological Findings.
    2 weeks ago
    Accurate preoperative imaging is essential for optimal surgical planning in breast carcinoma. Mammography and ultrasonography are commonly used imaging modalities; however, their relative effectiveness in tumor size estimation and lymph node evaluation varies. This study aimed to compare the diagnostic role of preoperative ultrasonography and mammography in breast carcinoma and to correlate imaging findings with intraoperative and histopathological outcomes.

    This prospective comparative observational study included 50 female patients with malignant breast disease undergoing elective surgery at a tertiary care teaching hospital. All patients underwent preoperative mammography and ultrasonography. Imaging findings were correlated with intraoperative observations and histopathological examination. Statistical analysis was performed using SPSS Statistics version 26.0 (IBM Corp. Released 2019. IBM SPSS Statistics for Windows, Version 26.0. Armonk, NY), with p < 0.05 considered statistically significant.

    The mean age of patients was 51.38 ± 9.65 years. Ductal carcinoma was the most common histopathological subtype (62%, n = 31). Ultrasonography demonstrated a mean tumor size of 2.97 ± 0.46 cm, which was closer to the intraoperative tumor size (3.49 cm) than the mammographic estimate of 2.53 ± 0.41 cm. Both ultrasonographic and mammographic tumor-size estimates differed significantly from the intraoperative measurements (both p < 0.001). Ultrasonography showed a stronger association with intraoperative lymph node findings than mammography.

    Preoperative ultrasonography yielded a mean tumor-size estimate closer to the reference measurement than mammography and showed a stronger association with intraoperative lymph node findings. However, the combined use of both imaging modalities provides optimal diagnostic assessment and should be routinely employed in the preoperative evaluation of breast carcinoma.
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  • Targeting the remodeled peritoneal ecosystem: a paradigm shift from tumor cells to the microenvironment in gastric cancer peritoneal metastasis.
    2 weeks ago
    Peritoneal metastasis (PM) is the most common form of organ-specific metastasis in advanced gastric cancer (GC), and is driven by the dynamic interplay between cancer cells and the tumor microenvironment (TME). This review elaborates on the mechanisms through which cancer cells utilize metabolic reprogramming, mechanical stress, and neural control to shape the microenvironment conducive to tumor growth. It also describes the metastatic cascade of their active dissemination and colonization processes of cancer cells within the peritoneal cavity. Finally, on the basis of these mechanistic insights, we propose a three-step strategy that dismantle physical barriers, blocks nutrient supply, and reverses immune suppression. The aim of this study to transform PM from a treatment challenge into a manageable disease, further improving disease prognosis.
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