Coincidence of de novo T-lymphoblastic lymphoma and cutaneous gamma/delta peripheral T-cell lymphoma.

The coincidence of acute T-lymphoblastic leukemia/lymphoma, NOS (T-ALL/LBL), and peripheral T-cell lymphoma (PTCL) is unusual, and there have only been a few cases of their metachronous occurrence. In these cases, PTCLs emerged as recurrence after primary therapy for primary T-ALL, were the rare gamma/delta type, and uncommonly involved skin for T-ALL/LBL. We herein report the first case of de novo T-LBL that coincided with cutaneous gamma/delta PTCL before primary therapy.

[Thoracic SMARCA4-deficient undifferentiated tumor resembling malignant lymphoma].

We present a case of thoracic SMARCA4-deficient undifferentiated tumor that needed to be differentiated from malignant lymphoma owing to multiple lymph node swelling and marrow involvement. A 52-year-old man developed multiple lymphadenopathies along with anorexia, general fatigue, fever, and sweating 2 months prior to admission. F-fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) scan revealed a mass lesion on the right upper lung, generalized lymph node swelling, and bone metastasis, indicating the presence of suspicious lung cancer; therefore, he was referred to our hospital.

Paravertebral extramedullary hematopoiesis in a case of myelodysplastic syndrome with ring sideroblasts and an SF3B1 mutation.

We present the case of a 56-year-old male patient with paravertebral extramedullary hematopoiesis (EMH) secondary to myelodysplastic syndrome with ring sideroblasts and multilineage dysplasia. In a routine health checkup over 5 years prior, he presented with asymptomatic mild anemia and a posterior mediastinal mass. Pathological and cytomorphological findings of the resected paravertebral mass were similar to those of his bone marrow specimen, and included cellularity with erythroid hyperplasia, multilineage dysplastic changes, and the presence of ring sideroblasts.

Bendamustine-induced rash is associated with a favorable prognosis in patients with indolent B-cell lymphoma.

Bendamustine is now recognized as a key drug for indolent B-cell lymphoma (iBCL), mantle cell lymphoma (MCL) and chronic lymphocytic leukemia (CLL). Skin toxicity associated with bendamustine is one of the characteristic adverse effects. We retrospectively examined the relationship between bendamustine-associated drug rashes and disease prognosis of iBCL and MCL at our institution.

Prognostic impact of peripheral blood mRNA expression levels in response to azacytidine in MDS: A single-centre analysis.

To determine the impact of peripheral blood (PB) () mRNA levels in patients with primary myelodysplastic syndromes (MDS), we analysed the relationships between several clinical variables at the time of diagnosis and the haematological response of patients treated with azacytidine. We observed overall responses in 20 (63%) patients; there were no significant differences in clinical variables, including bone marrow blast counts, IPSS scores and IPSS-R risk scores, between responders and non-responders. The responders' PB mRNA levels were significantly lower than those of non-responders ( = 0.

Indolent T-cell lymphoproliferative disorder of the stomach successfully treated by radiotherapy.

Successful treatment of indolent T-cell lymphoproliferative disorder of the gastrointestinal tract (ITLPDGI) by chemotherapy is rare and watchful waiting is often performed for asymptomatic patients. We report a case of ITLPDGI successfully treated by involved field radiotherapy (IFRT). The patient presented with slow ITLPDGI localised to the stomach with mild symptoms.

Peripheral T-cell lymphoma with gastrointestinal involvement and indolent T-lymphoproliferative disorders of the gastrointestinal tract.

The 2017 WHO classification includes a new provisional entity of indolent T-lymphoproliferative disorders of the gastrointestinal tract (ITLPD-GIT). We investigated GI involvement of peripheral T-cell lymphoma (PTCL). Eighty-two patients were diagnosed with PTCL during 2007-2017.

A case series of adult T-cell leukemia-lymphoma, associated with human T-cell leukemia virus type-1, at a single center in a non-viral-endemic metropolitan area.

We examined 13 patients with adult T-cell leukemia-lymphoma (ATL) diagnosed between 2007 and 2018 at a single center in a metropolitan area non-endemic for human T-cell leukemia virus type I (HTLV-1). The median age of the patients (eight male, five female) was 65 years (range, 48-83). The time from onset of symptoms to referral to our center was relatively short (median, 2 months; range, 1-9 months).

Monitoring of Hepatitis B Virus (HBV) DNA and Risk of HBV Reactivation in B-Cell Lymphoma: A Prospective Observational Study.

Background: There is no standard management of reactivation of hepatitis B virus (HBV) infection in HBV-resolved patients without hepatitis B surface antigen (HBsAg), but with antibodies against hepatitis B core antigen and/or antibodies against HBsAg (anti-HBs).

Methods: We conducted a prospective observational study to evaluate the occurrence of HBV reactivation by serial monthly monitoring of HBV DNA and to establish preemptive therapy guided by this monitoring in B-cell non-Hodgkin lymphoma (B-NHL) treated with rituximab plus corticosteroid-containing chemotherapy (R-steroid-chemo). The primary endpoint was the incidence of HBV reactivation defined as quantifiable HBV DNA levels of ≥ 11 IU/mL.

Hematologic improvements in a myelodysplastic syndromes with myelofibrosis (MDS-F) patient treated with azacitidine.

Myelodysplastic syndromes with myelofibrosis (MDS-F) is a poor prognostic hematopoietic disorder. Azacitidine was shown to prolong survival of high-risk MDS patients. However, the effects of azacitidine on MDS-F have yet to be elucidated.

Prospective analysis of hepatitis B virus reactivation in patients with diffuse large B-cell lymphoma after rituximab combination chemotherapy.

Purpose: Recently, there have been reports of hepatitis B virus (HBV) reactivation after rituximab combination chemotherapy in hepatitis B surface antigen (HBsAg) -negative patients with B-cell lymphoma. In this prospective study, the frequency of and risk factors for HBV reactivation in patients who were receiving rituximab chemotherapy were examined.

Patients And Methods: A total of 314 HBsAg-negative patients with diffuse large B-cell lymphoma were treated with rituximab chemotherapy.

A case of giardiasis expressing severe systemic symptoms and marked hypereosinophilia.

An 88-year-old Japanese woman was referred to our hospital due to a one-month history of face edema, aphagia, shortness of breath, and skin rush over almost her entire skin. She had no abdominal symptoms. Her peripheral blood count showed a white blood cell (WBC) count of 27.

[Marfan syndrome complicated with CD5+ CD10+ diffuse large B-cell lymphoma].

Marfan syndrome (MFS) is caused by mutations in the gene encoding fibrillin. A 35-year-old man with MFS visited a local physician because of a sore throat. His left tonsil gradually became swollen and he was referred to our department.

Multicentre phase II study of CyclOBEAP plus rituximab in patients with diffuse large B-cell lymphoma.

The R-CHOP regimen has been found to improve the outcome of diffuse large B-cell lymphoma (DLBCL). However, it does not provide a satisfactory treatment outcome in the high-risk group. We previously administered the CyclOBEAP regimen to patients with DLBCL, and reported its safety and efficacy.

Primary cutaneous anaplastic large-cell lymphoma presenting with hemophagocytic syndrome: a case report and review of the literature.

Primary cutaneous anaplastic large-cell lymphoma (C-ALCL) is a rare entity of lymphoma. We report a case of C-ALCL presenting with hemophagocytic syndrome and skin lesion with giant ulcer. Histopathological examination of the skin biopsy specimens showed non-epidermotropic infiltrates with cohesive sheets of large tumor cells.

Alveolar rhabdomyosarcoma mimicking nasal lymphoma at the initial presentation.

Rhabdomyosarcoma is exceedingly rare in adults. A 62-year-old woman was referred to our hospital because of general pain. Computed tomography revealed a solid tumor in the right nasal cavity.

Primary pulmonary plasmacytoma involving bilateral lungs and marked hypergammaglobulinemia: differentiation from extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue.

A 71-year-old woman was referred to our hospital because of hyperproteinemia and serum M-protein (IgG-lambda type). Chest computed tomographic (CT) scan revealed a tumor in each lung and transbronchial lung biopsy was performed. Histopathological examination showed monotonous medullary proliferation of morphologically mature plasma cells.

Development of hepatosplenic gammadelta T-cell lymphoma with pancytopenia during early pregnancy: a case report and review of the literature.

Lymphomas rarely develop during pregnancy, but hepatosplenic gammadelta T-cell lymphoma (HSgammadeltaTCL) is extremely rare. We encountered a case of T-cell intracellular antigen-1 (TIA-1) positive and granzyme B-positive HSgammadeltaTCL that developed early during the course of pregnancy. The patient was a 31-yr-old female who was referred to our hospital because of pancytopenia and splenomegaly at the time of the14th week of her gestation.

[Successful radiotherapy for the thoracic cord infiltration of adult T-cell leukemia/lymphoma].

A-51-year-old woman with a sixteen-year history of mixed connective tissue disease was admitted to the Kitasato University Hospital because of hypogastric pain in September 1999. Colonofiberscopy and computed tomography in the abdomen demonstrated thickening of the intestinal wall with a hemorrhagic ulcer in the terminal ileum. The histopathologic findings of the lesion revealed diffuse infiltration of atypical T-lymphocytes.

[Granulocytic sarcoma of the colon in chronic myelomonocytic leukemia].

A 59-year-old man with a six-month history of chronic myelomonocytic leukemia (CMML) was admitted to the Kitasato University Hospital because of melena in September 2000. Colonofiberscopy and barium enema demonstrated an ulcerated tumorous lesion in the transverse colon. The histopathologic findings of the ulcer bed revealed diffuse infiltration of granulocytes at each stage of differentiation.