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Results for “THROMBOCYTOSIS”

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At least 739 records · Page 41Linked to original sources
PubMed1991

[IgG lambda-type multiple myeloma associated with myelofibrosis accompanied by thrombocytosis].

A 72-year-old male had complained of right back pain and bleeding from his tongue. He was admitted to our department on May 18, 1989. Physical examination revealed hepatosplenomegaly. Peripheral blood findings were as follows: RBC was 3.80 x 10(6)/microliters. Hb 12.2 g/dl, Ht 36.5%, platelet count 735 x 10(3)/microliters, WBC 22,100/microliters, leukoerythroblastosis present. Neutrophil alkaline phosphatase score was normal. Serum vitamin B12 and plasma platelet-derived growth factor level were elevated. Skeletal X-ray revealed multiple punched-out lesions at the 8th thoracic vertebra, and 6th and 8th ribs. Serum IgG level was 3,900 mg/dl. Serum immunoelectrophoresis revealed IgG lambda-type M-protein. Because he complained of severe cervical pain, and skeletal X-ray examination revealed the fracture of 6th cervical vertebra, the operation was performed to remove the lesion. Biopsy of cervical lesion revealed plasmacytoma. M-protein was decreased and the size of the tumor was reduced after treatment with VCAP (vincristine, cyclophosphamide, adriamycin, prednisolone) regimen and interferon-alpha for multiple myeloma.

Aged↗
PubMed1989

[Megakaryocytic leukemia with thrombocytosis].

A 62-year-old man was admitted to our hospital with exertional dyspnea. On admission, neither hepatosplenomegaly nor lymphadenopathy were noted. Laboratory data revealed anemia (Hb, 4.8 g/dl), leukopenia (2,800 microliters) and a normal platelet count (21 X 10(4)/microliters). The immature blast cells in the peripheral blood were 15%, which increased to 32% during his clinical course. On cytochemical studies, the blast cells had no staining with peroxidase, alpha-naphthyl-butyrate esterase and PAS, although acid phosphatase was positive. More than 58% of the blasts were identified as being of megakaryocytic lineage by platelet peroxidase and by tests with monoclonal GP IIb/IIIa antibody. Bone marrow biopsy disclosed marked fibrosis. However, the patient constantly had normal counts of platelets ranging from 21 X 10(4) to 63 X 10(4)/microliters. This case provides evidence that the megakaryocytic leukemias can be categorized into two types, which are characterized by either undifferentiated or differentiated megakaryocytic leukemia cells.

Cell Differentiation↗