Publications by authors named "Takanori Toyama"

Article Synopsis
  • * The Orbit study aimed to evaluate real-world outcomes for adults with CLL/SLL in Japan treated with ibrutinib between July 2018 and December 2020, including 246 patients in total.
  • * After 36 months, the study showed an 80.9% progression-free survival rate for first-line treatment and 67.2% for relapsed cases, with common significant side effects including bleeding and infections, underscoring ibr
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Myeloid and lymphoid neoplasms associated with FGFR1 abnormalities (MLN-FGFR1 abnormalities) are rare hematologic malignancies associated with chromosome 8p11.2 abnormalities. Translocations of 8p11.

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The prognosis of aggressive adult T-cell leukemia/lymphoma (ATL) is poor, and allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative treatment. In order to identify favorable prognostic patients after intensive chemotherapy, and who therefore might not require upfront allo-HSCT, we aimed to improve risk stratification of aggressive ATL patients aged <70 years. The clinical risk factors and genetic mutations were incorporated into risk modeling for overall survival (OS).

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An 85-year-old woman was admitted to our hospital because of leukocytosis. Abnormal lymphocytic leukocytosis, including few plasmacytes, anemia, and thrombocytopenia, were observed. A diagnosis of primary macroglobulinemia was made based on immunoglobulin M-kappa monoclonal gammopathy, FACS of abnormal lymphocytes, and confirmed MYD88 L265P somatic mutation.

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A retrospective chart survey of the clinical features of indolent adult T-cell leukemia/lymphoma (ATL) was conducted in the Miyazaki Prefecture, Japan. This study enrolled 24 smoldering-type ATLs, 10 favorable chronic-type ATLs, and 20 unfavorable chronic-type ATLs diagnosed between 2010 and 2018. Among them, 4, 3, and 10 progressed to acute-type ATLs during their clinical course.

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We presented a difficult-to-diagnose case of cardiac angiosarcoma. The patient presented pericardial effusion, but cytology of the effusion was negative. Because cytological detection of angiosarcoma cells is difficult, a possibility of malignancy should not be excluded with negative cytological examination.

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The prognosis of multiple myeloma (MM) has improved with the introduction of novel agents. These data are largely derived from clinical trials and might not reflect real-world patient outcomes accurately. We surveyed real-world data from 284 patients newly diagnosed with MM between 2010 and 2018 in Miyazaki Prefecture.

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Objective And Method: Adult T-cell leukemia/lymphoma (ATL) is an aggressive peripheral T-cell lymphoma with poor prognosis. We retrospectively reviewed the medical records of 312 patients with aggressive ATL and analyzed the effect of chemotherapy dose intensity on prognosis in clinical practice.

Result: As first-line therapy, 62 patients underwent best supportive care (BSC) or single-agent chemotherapy, and 235 underwent intensive chemotherapy.

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Longitudinal mucosal and submucosal hemorrhage along the taeniae coli is a potential colonic manifestation of cytomegalovirus infection in immunocompromised patients. When diagnosing cytomegalovirus colitis in immunocompromised patients, endoscopic biopsy on taeniae coli seems effective for viral detection.

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A new entity, namely early/prefibrotic primary myelofibrosis (PMF), was introduced as a subtype of PMF in the 2016 revised World Health Organization (WHO) criteria for myeloproliferative neoplasms (MPN). It was diagnosed based on histopathological features of bone marrow (BM) biopsy specimens together with clinical parameters [leukocytosis, anemia, elevated lactate dehydrogenase (LDH) values, and splenomegaly]. The aim of this study was to evaluate the prevalence of early/prefibrotic PMF in patients who were previously diagnosed with ET, and to compare clinical features at diagnosis and outcomes between early/prefibrotic PMF and essential thrombocythemia (ET) patients.

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Polycythemia vera (PV) and essential thrombocythemia (ET) are associated with life-threatening thrombohemorrhagic events, and disease progression and development of non-hematological malignancies also reduce long-term survival. We retrospectively surveyed thrombohemorrhagic events and overall survival (OS) in 62 PV and 117 ET patients. The cumulative incidences of thrombohemorrhagic events in PV and ET patients were 11.

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Objective: The efficacy of mogamulizumab in adult T-cell leukemia/lymphoma (ATLL) was reported in a previous phase 2 study. Compared with patients in clinical trials, however, most patients in real-life settings have demonstrated worse outcomes.

Method: We retrospectively analyzed 96 patients with relapsed/refractory ATLL who received mogamulizumab treatment.

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We performed a retrospective population-based cohort study of acute myeloid leukemia (AML) in Miyazaki Prefecture, Japan. Over 6 years, we diagnosed 221 patients (211 adults and 10 children) with AML, indicating an incidence of AML in Miyazaki Prefecture of 3.2 per 100,000 per year.

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Background: Secondary central nervous system lymphoma (SCNSL) without extra-central nervous system (CNS) involvement is characterized by isolated secondary CNS relapse in malignant lymphoma patients. SCNSL is a rare disease, and no standard treatment has yet been established.

Patients And Methods: To elucidate the clinical characteristics and outcomes of SCNSL, we retrospectively analyzed 12 patients (median age 67 years) in Miyazaki prefecture for the last 5 years.

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Pemphigus is a mucocutaneous intraepithelial blistering disease caused by autoantibodies to epithelial cell adhesion molecules (desmoglein). The association between pemphigus and malignant neoplasm is well recognized. We present the case of a 62-year-old woman with pemphigus vulgaris accompanied by multiple myeloma.

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Serum levels of hepatocyte growth factor (HGF), a potent angiogenic factor, increase during various haematological malignancies. In this study, we examined serum HGF in 59 patients with non-Hodgkin's lymphoma (NHL). Serum HGF levels in NHL patients were increased, as were levels in patients with multiple myeloma, chronic myeloproliferative disorders, and myelodysplastic syndrome.

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For the oncogenesis of many malignancies, it is crucial to prevent the shortening of the telomeres by the action of telomerase. In this study, clinical data and disease outcomes were analyzed in conjunction with the telomerase activity (TA) and telomere length (TL) of peripheral blood mononuclear cells. The study was carried out in 22 patients with adult T-cell leukemia (ATL) (7 chronic and 15 acute types) and in 13 asymptomatic human T-lymphotropic virus type 1 (HTLV-1) carriers.

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We herein report a patient with adult T-cell leukemia/lymphoma (ATLL) of the descending colon. A 64-year-old man was admitted to our hospital complaining of left lower abdominal pain. Endoscopic examination revealed an ulcerative tumor in the descending colon that was diagnosed as T-cell lymphoma by biopsy.

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A 50-year-old man was admitted to another hospital with epigastralgia. Malignant lymphoma was suspected because the patient had increased levels of serum LDH and an abnormal Ga scintigraphy finding in his chest. When he was transferred to our hospital, he underwent a right inguinal lymphadenopathy.

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