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Results for “ANEMIA, LEUKOERYTHROBLASTIC”

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Transient erythroblastopenia of childhood (TEC) presenting as leukoerythroblastic anemia.

PURPOSE: The diagnosis of transient erythroblastopenia of childhood (TEC) is usually straightforward, with temporary cessation of red blood cell production resulting in normocytic normochromic anemia, reticulocytopenia, and bone marrow erythroblastopenia. We describe here a case of TEC presenting with features of leukoerythroblastic anemia. To our knowledge, this is the first such report for TEC. PATIENT AND METHODS: The case of a 1-year-old girl is described who had a leukoerythroblastic anemia. Bone marrow examination and clinical course indicated that the anemia had a benign etiology-TEC. RESULTS: The patient presented with anemia, leukocytosis, and a left shift, with metamyelocytes, myelocytes, myeloblasts, and nucleated red cells in the circulation. There was no apparent viral etiology, and the bone marrow aspirate findings were consistent with a recovering marrow. After transfusion, the patient had an uneventful recovery from TEC. CONCLUSION: TEC can cause leukoerythroblastic anemia. TEC with this presentation is clinically similar to TEC without leukoerythroblastosis, but other causes of leukoerythroblastosis need to be excluded.

Anemia↗

Leukoerythroblastic anemia in metastatic prostate cancer. Clinical and prognostic significance in patients with hormone-refractory disease.

BACKGROUND: The clinical and prognostic significance of leukoerythroblastic anemia (LKEA) in patients with metastatic prostate cancer and, in general, patients with disseminated solid tumors is poorly understood. Therefore, the authors studied a population of patients with metastatic prostate cancer refractory to hormonal therapy to assess the incidence, clinical features, and prognostic implications of LKEA. METHODS: The medical records of 106 patients with hormone-refractory prostate cancer metastatic to bone seen at the Tucson Veterans Affairs Medical Center between 1985 and 1991 were reviewed retrospectively. The clinical and laboratory data, number of packed erythrocyte transfusions required, and length of survival from the time of diagnosis of hormone-refractory disease until last follow-up visit or death were investigated in 91 identified patients. RESULTS: Twenty-six of 91 patients (28.6%) were found to have LKEA. LKEA developed before or at the time of diagnosis of hormone-refractory disease in 8 patients and after diagnosis of hormone-refractory disease in 18 patients. The presence of LKEA was associated with significantly lower hemoglobin levels and platelet (Plt) counts and significantly higher total bilirubin, lactic dehydrogenase (LDH), and alkaline phosphatase values (P < 0.05). Leukopenia (< 4.0 x 10(9)/l leukocytes), thrombocytopenia (< 150 x 10(9)/l Plt), elevated LDH levels (> 220 U/l), and laboratory evidence of disseminated intravascular coagulation (DIC) were more common in patients with LKEA than in those without LKEA (P < 0.01). Microangiopathic hemolysis was seen in only 2 of 91 patients (2.1%). Patients with LKEA had significantly greater transfusion requirements compared with patients without LKEA (P < 0.0001), but the median survival length was not significantly different (9 months versus 11 months, respectively). The presence of DIC and LDH levels of 500 U/l or greater in patients with LKEA was associated with a poor prognosis. CONCLUSIONS: LKEA is a relatively common finding in patients with hormone-refractory metastatic prostate cancer and is associated with greater transfusion requirements. Its presence, however, does not affect survival significantly.

Aged↗

Primary myelofibrosis in children: report of 4 cases.

From 1982 to 1985, four cases of primary myelofibrosis were diagnosed in our department. Three were boys and one was a girl. Their ages ranged from 7 months to 15 years. The diagnosis was made based on anemia, leukoerythroblastic change and presence of giant platelets in the peripheral blood, and a bone marrow biopsy showing myelofibrosis. Most of them had anemia, fever, and hepatosplenomegaly on admission. The anemia was severe and refractory to repeated transfusions and steroid therapy in 3 out of the 4 cases. Splenectomy was performed in 1 case, but without satisfactory results. The clinical course and blood pictures in one case resembled leukemia of megakaryocyte lineage (M7), but results of marker studies of the blast cells ruled out the possibility of M7. Three of them underwent leukemic transformation within 2 years and died soon after. The other one died of sepsis 2 weeks after diagnosis. Myelofibrosis in childhood occurs rarely, however, when it does, it always runs a rapid and fatal course.

Adolescent↗

Pre-B acute lymphoblastic leukemia in a 3-year-old boy with pre-acute myelogenous leukemia myelodysplastic syndrome: cytogenetic evidence of common early progenitor cell ontogeny.

PURPOSE: Myelodysplastic syndromes in children commonly evolve into acute leukemia, usually acute myelogenous leukemia (AML) and rarely acute lymphoblastic leukemia (ALL). The lineage of the leukemia can be predicted based on characteristic morphologic and cytogenetic findings of the marrow and peripheral blood. PATIENT AND METHODS: A 3-year-old boy had refractory anemia with excess blasts and abnormalities suggestive of pre-AML with highly unusual cytogenetic changes. ALL of pre-B phenotype developed. RESULTS: Leukoerythroblastic anemia, pseudo Pelger-Huet neutrophils, and dysmyelopoietic hyperplasia of the marrow suggested likely early progression to AML. Complex cytogenetic abnormalities (monosomy 17 and 20, ring chromosome 11 with deletion of bands q23, and a derivative dicentric chromosome 12) were present in both the myelodysplastic marrow and the subsequent ALL. CONCLUSION: This case presents cytogenetic evidence of common early progenitor cell ontogeny of both malignancies (refractory anemia with excess blasts and ALL).

Anemia, Refractory, with Excess of Blasts↗

Multiple diffuse fibrosarcoma of bone associated with extramedullary hematopoiesis.

We report a case of multiple diffuse fibrosarcoma of bone. The patient, a 38-year-old man, was referred to our hospital with knee pain, anemia and thrombocytopenia. No solid mass was seen on radiographic examination of the kneejoint, but magnetic resonance imaging showed hypointensity of the distal femur. Femoral biopsy revealed proliferation of long spindle-shaped fibrosarcoma cells, while a bone marrow biopsy of iliac bone (which appeared normal on radiographic examinations) showed replacement of hematopoietic cells by fibroblast-like spindle cells. A diagnosis of multiple diffuse fibrosarcoma of bone was therefore made. Autopsy revealed tumor invasion into multiple bones and several visceral organs and extramedullary hematopoiesis in the liver, spleen and lymph nodes. As this patient had leukoerythroblastic anemia with poikilocytosis, splenomegaly exhibiting extramedullary hematopoiesis, and apparent fibrotic change in his bone marrow, we suggest that this extremely rare disease should be considered in the differential diagnosis of myelofibrosis.

Adult↗