Human fibroblast colony formation from bone marrow was performed in liquid culture. Fetal calf serum was used as a stimulator of the fibroblast colony formation. The colony formation took place not only in normal donors, but also in patients with acute leukemia and chronic myelocytic leukemia. At the diagnosis of the disease, significant colony suppression was observed in most cases of acute le...

Two children presented with Ph1-positive leukemia, confirmed by Giemsa banding as 22q-. One child showed an initial presentation characteristic of acute lymphoblastic leukemia, followed by development of chronic myelocytic leukemia 2 yr later. A second child presented in blast crisis. Both patients showed blast cells possessing both lymphoid and myeloid characteristics, as demonstrated by histo...

Using a radioimmunoassay, increased levels of a human thymus/leukemia-associated antigen (HThy-L) have been detected in leukemic cells and plasma from most patients with E-rosette-positive acute lymphoblastic leukemia (ALL) and a number of patients with E-rosette-negative ALL, acute myeloblastic leukemia (AML), acute monomyelocytic leukemia (AMML), and acute undifferentiated leukemia (AVL). Low...

Granulocytic sarcoma or chloroma is a tumor seen in myelocytic leukemia. Spinal epidural onset is rare and is generally seen before or together with the onset of myelocytic leukemia. An epidural mass located at the 2nd-5th thoracic levels in an 18-year-old male patient was pathologically diagnosed as granulocytic sarcoma. Radiotherapy was performed after surgical intervention. Ten months later,...

Ribosomes were isolated and ribosomal RNA (rRNA) was prepared from leukemic cells derived from the venous blood of patients with acute myeloblastic leukemia, acute undifferentiated leukemia, subacute myelocytic leukemia, chronic lymphocytic leukemia, leukemic lymphosarcoma, leukemic reticuloendotheliosis, a cultured Burkitt lymphoma cell line, and phytohemagglutinin-stimulated normal lymphocyte...

Ribosomes were isolated and ribosomal RNA (rRNA) was prepared from leukemic cells derived from the venous blood of patients with acute myeloblastic leukemia, acute undifferentiated leukemia, subacute myelocytic leukemia, chronic lymphocytic leukemia, leukemic lymphosarcoma, leukemic reticuloendotheliosis, a cultured Burkitt lymphoma cell line, and phytohemagglutinin-stimulated normal lymphocyte...

During the course of treatment for acute myelocytic leukemia, Haemophilus aphrophilus was isolated from eight blood cultures associated with the clinical picture of bacterial endocarditis.