embryonal leukemia


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stem cell leu·ke·mi·a

a form of leukemia in which the abnormal cells are thought to be the precursors of lymphoblasts, myeloblasts, or monoblasts.
Synonym(s): embryonal leukemia

embryonal leukemia

stem cell leu·ke·mi·a

(stem sel lū-kē'mē-ă)
A form of leukemia in which the abnormal cells are thought to be the precursors of lymphoblasts, myeloblasts, or monoblasts.
Synonym(s): embryonal leukemia.

leukemia

a progressive, malignant disease of the blood-forming organs, marked by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow. Signs include fever and enlargement of the lymph nodes, spleen and liver. The persistent lymphocytosis that occurs in some cattle is a response to infection with the bovine viral leukosis virus. Similarly, leukemia may occur in the lymphoproliferative and myeloproliferative diseases caused by feline leukemia virus in cats.

aleukemic leukemia
leukemia in which the leukocyte count is normal or below normal.
avian leukemia
see avian leukosis.
basophilic leukemia, basophilocytic leukemia
leukemia in which basophilic granulocytes predominate.
B-cell leukemia
leukemia arising from B lymphocytes.
bovine leukemia
see bovine viral leukosis.
leukemia cutis
skin lesions associated with dissemination of systemic leukemia; they may be neoplastic or nonspecific.
embryonal leukemia
stem cell leukemia.
eosinophilic leukemia
occurs rarely in cats. There are large numbers of eosinophils with infiltration of spleen, liver, lymph nodes and bone marrow.
feline leukemia complex
the array of diseases associated with infection of cats by the feline leukemia virus; includes lymphoreticular neoplasms, myelodysplastic disorders and abnormalities of the immune system.
feline leukemia virus (FeLV)
see feline leukemia virus.
granulocytic leukemia
myelocytic leukemia.
leukopenic leukemia
aleukemic leukemia.
lymphatic leukemia, lymphoblastic leukemia, lymphocytic leukemia, lymphogenous leukemia, lymphoid leukemia
leukemia associated with hyperplasia and overactivity of the lymphoid tissue, in which the leukocytes are lymphocytes or lymphoblasts.
lymphosarcoma cell leukemia
a form marked by large numbers of lymphosarcoma cells in the peripheral blood; depending on the degree of bone marrow involvement, it may be a variant of lymphosarcoma.
mast cell leukemia
a form marked by overwhelming numbers of tissue mast cells in the peripheral blood.
megakaryoblastic leukemia
a rare disease of young dogs, characterized by intestinal hemorrhage, anemia and a fatal outcome within a few weeks. There is a pancytopenia and marked thrombocytopenia.
megakaryocytic leukemia
a form with numerous megakaryocytes in the spleen, bone marrow, and other tissues, but decreased numbers or abnormal thrombocytes in the peripheral blood, and anemia. Reported in dogs and cats. Called also megakaryocytic myelosis.
monocytic leukemia
leukemia in which the predominating leukocytes are monocytes.
myeloblastic leukemia
characterized by a predominance of immature myeloid series of cells in the blood; largely a disease of young male dogs and cats.
myelocytic leukemia, myelogenous leukemia, myeloid leukemia
a form arising from myeloid tissue in which the granular polymorphonuclear leukocytes and their precursors predominate.
myelomonocytic leukemia
concurrent neoplasia of the neutrophilic and monocytic cell lines with a monocytic leukemia, a high total leukocyte count, anemia and thrombocytopenia.
plasma cell leukemia, plasmacyte leukemia
a form in which the predominating cell in the peripheral blood is the plasma cell.
premyelocytic leukemia
a form in which the predominant cells are premyeloblasts, rather than myeloblasts, often associated with abnormal bleeding secondary to thrombocytopenia, hypofibrinogenemia and decreased levels of clotting factor V.
promyelocytic leukemia
characterized by a predominance of promyelocytes in peripheral blood and in the bone marrow. A disease of dogs and cats with bleeding tendencies, anemia and a susceptibility to septicemia with a fatal outcome within a few weeks.
stem cell leukemia
leukemia in which the predominating cell is so immature and primitive that its classification is difficult.
subleukemic leukemia
aleukemic leukemia.
undifferentiated leukemia
an acute myeloproliferative disorder in which the cells involved cannot be identified.