
Leukemia of unspecified cell type
- progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow; classified according to degree of cell differentiation as acute or chronic, and according to predominant type of cell involved as myelogenous or lymphocytic.
- (loo-KEE-mee-a) Cancer of blood-forming tissue.
- A malignant (clonal) hematologic disorder, involving hematopoietic stem cells and characterized by the presence of primitive or atypical myeloid or lymphoid cells in the bone marrow and the blood. Leukemias are classified as acute or chronic based on the degree of cellular differentiation and the predominant cell type present. Leukemia is usually associated with anemia, fever, hemorrhagic episodes, and splenomegaly. Common leukemias include acute myeloid leukemia, chronic myelogenous leukemia, acute lymphoblastic or precursor lymphoblastic leukemia, and chronic lymphocytic leukemia. Treatment is vital to patient survival; untreated, the natural course of acute leukemias is normally measured in weeks or months, while that of chronic leukemias is more often measured in months or years.

Leukemia of unspecified cell type acute
- leukemia in which the involved cell shows little or no differentiation, usually consisting of blast cells; two types are distinguished, acute lymphocytic and acute myelogenous leukemia.
- A rapidly progressing cancer of the blood-forming tissue (bone marrow).
- A clonal (malignant) hematopoietic disorder affecting the bone marrow and the peripheral blood. The malignant cells show minimal differentiation and are called blasts, either myeloid blasts (myeloblasts) or lymphoid blasts (lymphoblasts). According to the type of blasts present, acute leukemias are classified as acute myeloid leukemia (AML) and precursor lymphoblastic or acute lymphoblastic leukemia (ALL).
- A leukemia originating from a precursor bone marrow cell which is in an earlier developmental stage compared to lymphoblasts and myeloblasts. -- 2003

Leukemia of unspecified cell type acute without remission

Leukemia of unspecified cell type acute in remission
- Acute leukemia not growing; responding to treatment.

Leukemia of unspecified cell type chronic
- leukemia in which the involved cell is well differentiated, usually B-lymphocytes, but immunologically incompetent; types distinguished include chronic granulocytic, chronic lymphocytic, chronic myelomonocytic, eosinophilic and hairy cell leukemia.
- (KRAHN-ik) A slowly progressing cancer of the blood-forming tissues.
- A slowly progressing leukemia characterized by a clonal (malignant) proliferation of maturing and mature myeloid cells or mature lymphocytes. When the clonal cellular population is composed of myeloid cells, the process is called chronic myelogenous leukemia. When the clonal cellular population is composed of lymphocytes, it is classified as chronic lymphocytic leukemia, hairy cell leukemia, or T-cell large granular lymphocyte leukemia.

Leukemia of unspecified cell type chronic without remission

Leukemia of unspecified cell type chronic in remission
- Leukemia that is no longer growing or metastasizing; it is responding to therapy.

Leukemia of unspecified cell type subacute

Leukemia of unspecified cell type subacute without remission

Leukemia of unspecified cell type subacute in remission

Other leukemia of unspecified cell type

Other leukemia of unspecified cell type without remission

Other leukemia of unspecified cell type in remission

Unspecified leukemia
- progressive, malignant disease of the blood-forming organs, characterized by distorted proliferation and development of leukocytes and their precursors in the blood and bone marrow; classified according to degree of cell differentiation as acute or chronic, and according to predominant type of cell involved as myelogenous or lymphocytic.
- (loo-KEE-mee-a) Cancer of blood-forming tissue.
- A malignant (clonal) hematologic disorder, involving hematopoietic stem cells and characterized by the presence of primitive or atypical myeloid or lymphoid cells in the bone marrow and the blood. Leukemias are classified as acute or chronic based on the degree of cellular differentiation and the predominant cell type present. Leukemia is usually associated with anemia, fever, hemorrhagic episodes, and splenomegaly. Common leukemias include acute myeloid leukemia, chronic myelogenous leukemia, acute lymphoblastic or precursor lymphoblastic leukemia, and chronic lymphocytic leukemia. Treatment is vital to patient survival; untreated, the natural course of acute leukemias is normally measured in weeks or months, while that of chronic leukemias is more often measured in months or years.

Unspecified leukemia without remission

Unspecified leukemia in remission
- History of leukemia after therapy with no evidence on the peripheral blood or bone marrow of leukemia (normalization of all hematologic parameters).