Soluble B-cell maturation antigen (sBCMA) is overexpressed on multiple myeloma (MM) cells. We investigated whether sBCMA levels correlated with other myeloma tumor volume indicators and its utility in monitoring oligo-secretory/non-secretory (O-S/Non-S) MM. In 115 patients with newly diagnosed MM, sBCMA was compared with M-protein levels, bone marrow plasma cells (BMPCs), circulating tumor cells (CTCs), and total diffusion volume (tDV; estimated by whole-body diffusion-weighted magnetic resonance imaging) at diagnosis.
View Article and Find Full Text PDFIntravascular large B-cell lymphoma (IVLBCL) typically involves nonspecific symptoms that complicate diagnosis. This report discusses the case of a 70-year-old man, who presented with dyspnea, fatigue, and weight loss that evolved into severe respiratory failure, diagnosed with IVLBCL via random skin biopsy. The initial improvement in respiratory symptoms was followed by coronavirus disease.
View Article and Find Full Text PDFPurpose: High-dose methotrexate (HDMTX) is integral in treating hematologic malignancies but carries risks of severe toxicities due to prolonged MTX exposure. However, knowledge of delayed MTX excretion is primarily derived from pediatric and adolescent cohorts, with the reported predictors being presented as rough dichotomous values. This study aimed to identify risk factors for delayed MTX excretion exclusively in adult patients with hematologic malignancies and develop a more applicable predictive nomogram based on continuous clinical and laboratory variables.
View Article and Find Full Text PDFIn order to elucidate the relationship between pretreatment radiomic parameters and the proportions of various tumor-infiltrating (TI) cells, we retrospectively analyzed the association of total metabolic tumor volume (TMTV) and TI cells on biopsied tumor lesions in 171 patients with newly diagnosed diffuse large B-cell lymphoma (DLBCL). The surface markers of TI cells were analyzed by multicolor flow cytometry using a dissected single-cell suspension. In examining the correlation between TI cells and positron-emission tomography-derived parameters (maximum standardized uptake value [SUVmax], total metabolic tumor volume [TMTV], and total lesion glycolysis), intratumoral cell types minimally influenced the results, except for a weak negative correlation between CD4+ cells and SUVmax (R=-0.
View Article and Find Full Text PDFWe aimed to improve prognostic predictors in patients with transplant-ineligible multiple myeloma (TIE-MM) by combining baseline circulating clonal tumor cells (CTCs) and positron emission tomography/computed tomography (PET/CT) findings. The factors associated with prognosis were retrospectively investigated in 126 patients with TIE-MM who underwent CTC quantification by multiparameter flow cytometry and PET/CT at the initial presentation. The total lesion glycolysis (TLG) level was calculated using the Metavol software.
View Article and Find Full Text PDFThe aim of this study was to evaluate the concordance between clinical diagnosis and pathologic findings of veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) in post-hematopoietic stem cell transplantation recipients and to investigate the accuracy of the HOKUS-10 score in diagnosing VOD/SOS. We included 13 patients who underwent transjugular liver biopsy for clinical suspicion of VOD/SOS and collected their clinical, laboratory, imaging, and pathologic data. Eleven patients were confirmed to have VOD/SOS by pathologic examination.
View Article and Find Full Text PDFVenetoclax combined with low-intensity chemotherapy has led to longer survival and higher remission rates in patients with untreated acute myeloid leukaemia who are ineligible for intensive chemotherapy. We reviewed 41 newly diagnosed and relapse/refractory acute myeloid leukaemia patients who received venetoclax at our institute. Complete remission or complete remission with incomplete recovery was achieved in 73.
View Article and Find Full Text PDFAntibody titres in 462 patients with haematological malignancies after the second (D2) and third (D3) SARS-CoV-2 vaccine were compared with those of healthy controls (HCs). Significant decay of antibody titre was observed pre D3, but titre surged post D3. The number of seronegative patients decreased from 79 (17.
View Article and Find Full Text PDFTo evaluate the efficacy of high-dose methotrexate (HD-MTX, ≥1 g/m) for the prevention of central nervous system (CNS) recurrence in patients with intravascular large B-cell lymphoma (IVLBCL), we reviewed 51 patients with pathologically diagnosed untreated IVLBCL. In total, there were five cases of CNS relapse (9.8%), and the 12-month CNS relapse rate was 9.
View Article and Find Full Text PDFChylous effusion is associated with lymphatic obstruction or leakage in mediastinal or abdominal lymph nodes, and is a rare but troublesome complication in patients with malignant lymphomas. Although there is no standard of care, it is often treated with simultaneous chemotherapeutic and non-chemotherapeutic interventions. Here, we describe the cases of five patients with lymphoma-associated chylothorax with the aim of clarifying an effective treatment strategy.
View Article and Find Full Text PDFWe evaluated anti-spike protein antibody (anti-S) production in 130 hematopoietic stem cell transplant (HSCT) recipients who received the coronavirus disease-2019 vaccine. Sixty-five received allo-HSCT and 65 received auto-HSCT. Disease-specific treatments were being administered to 43.
View Article and Find Full Text PDFData on the effect of ruxolitinib on antibody response to severe acute respiratory coronavirus 2 (SARS-CoV-2) vaccination in patients with myeloproliferative neoplasms (MPN) is lacking. We prospectively evaluated anti-spike-receptor binding domain antibody (anti-S Ab) levels after the second dose of the BNT162b2 (Pfizer-BioNTech) vaccine in MPN patients. A total of 74 patients with MPN and 81 healthy controls who were vaccinated were enrolled in the study.
View Article and Find Full Text PDFCarfilzomib (Cfz) is widely used to treat multiple myeloma. However, real-world data of the incidence of thrombotic microangiopathy (TMA) caused by Cfz is inconsistent (<1-5%). We evaluated 96 consecutive patients who received Cfz to evaluate the incidence of TMA in clinical practice.
View Article and Find Full Text PDFWe conducted a prospective, three-center, observational study in Japan to evaluate the prevalence of seropositivity and clinically protective titer after coronavirus disease 2019 vaccination in patients with plasma cell dyscrasia(PCD). Two-hundred sixty-nine patients with PCD [206 symptomatic multiple myeloma (MM)] were evaluated. Seropositivity was observed in 88.
View Article and Find Full Text PDFPatients with lymphoma are at increased risk for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); therefore, evaluation of SARS-CoV-2 vaccination efficacy is essential. We conducted a prospective observational study to monitor the antibody response in 500 patients with lymphoma after SARS-CoV-2 vaccination. Antibody levels increased in a stepwise manner after the first and second dose of the vaccine.
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