Masayuki Seita

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Twenty-three patients with squamous cell carcinoma were treated with a combination chemotherapy consisting of cisplatin, vincristine, and peplomycin. Overall response rate was over 70% including complete disappearance of tumors in one patient. Peplomycin was given by continuous i.v. or s.c. infusion using a micro-infusion pump. All the patients experienced(More)
Adult T-cell leukemia (ATL) has a range of clinical characteristics. Phenotypically the leukemic cells usually express the helper/inducer associated antigen OKT4 with lack of OKT8. We have observed three patients with acute ATL cytologically indistinguishable from OKT4+/OKT8- ATL but whose neoplastic cells had the unusual phenotype, OKT3+, OKT4+, OKT6-,(More)
The clinical characteristics of 33 patients with adult T-cell leukemia (ATL) are described. All patients were born and have lived in Miyazaki Prefecture (southwest of Japan). Because of a wide range of clinical presentations and courses, they were subdivided into 2 groups. In the high-risk group, patients presented with high white-cell counts (WBC greater(More)
Adult T-cell leukemia (ATL) is one of the most difficult diseases to treat because of severe underlying immune deficiency and metabolic disturbance. Interferon has potent antiviral, antiproliferative, and immunomodulating properties, and therefore, this may be a good agent to treat such immune deficient patients with peripheral T-cell leukemia. During a(More)
The leukemic cells of adult T-cell leukemia (ATL) usually express the helper/inducer associated antigen reactive with anti-CD4 antibodies but not with anti-CD8. We present a 63-yr-old woman with ATL characterized by circulating leukemic cells with CD4+/CD8- phenotype, hepatosplenomegaly with no lymphadenopathy, and the presence of proviral DNA of human(More)
Three patients with cardiac tamponade caused by malignancy were treated by pericardiocentesis with intrapericardial OK-432 instillation. The underlying disease was adenocarcinoma of unknown origin, breast cancer and multiple myeloma. Under electrocardiographic monitoring, a polyethylene catheter with several side holes was inserted into the pericardial sac,(More)
A 78-year-old male was admitted to our hospital complaining of anorexia. Endoscopy revealed gastric cancer with pyloric stenosis and MRI showed multiple metastasis of thoracic vertebral body. Blood examinations showed DIC and CEA was 118.3 ng/mL. Sternum bone marrow biopsy revealed poorly-differentiated adenocarcinoma. Chemotherapy with sequential therapy(More)
A 31-year-old man with multiple osteomyelitis due to Mycobacterium avium is reported. The patient had been on prednisolone for systemic lymphadenopathy which was thought to be caused by sarcoidosis. In June 1990, he noticed high fever and general bone pain. He was found to have multiple lytic lesions in the bones which were biopsied showing acid-fast(More)
Adult T-cell leukemia (ATL) is an extremely difficult disease to treat. The median survival of patients with this disease has been reported to be only about 3 mo even with intensive treatment. We have treated five ATL patients (four males and one female, 42 to 72 yr of age) with total body irradiation (TBI). One patient who received 150 rad of TBI achieved(More)
A patient with idiopathic hypogonadotropic hypogonadism (IHH) had an apparently balanced reciprocal translocation involving chromosomes 13 and 16 [t(13;16)(q14.11;q24)]. The patient's father has the same chromosomal translocation with no apparent physical abnormalities. The role of the chromosomal translocation in this patient is discussed.