Terminology Service < Semantic Lookup Platform

All individuals in MESHD

Label	Id	Description
Leprosy, Paucibacillary	D056005	[A form of LEPROSY classified by the World Health Organization for the purpose of treatment, based on clinical manifestations and skin smear results. Patients with paucibacillary leprosy have fewer than six skin lesions with no causative agent MYCOBACTERIUM LEPRAE on any slit-skin smear testing. Paucibacillary leprosy encompasses indeterminate, borderline tuberculoid, and tuberculoid leprosy.]
Leprosy, Tuberculoid	D015441	[A principal or polar form of LEPROSY in which the skin lesions are few and are sharply demarcated. Peripheral nerve involvement is pronounced and may be severe. Unlike lepromatous leprosy (LEPROSY, LEPROMATOUS), the lepromin test is positive. Tuberculoid leprosy is rarely a source of infection to others.]
Leptospirosis	D007922	[Infections with bacteria LEPTOSPIRA CANICOLA., Infections with bacteria of the genus LEPTOSPIRA., Infections with bacteria LEPTOSPIRA POMONA., Infections with bacteria LEPTOSPIRA INTERROGANS.]
Leriche Syndrome	D007925	[A condition caused by occlusion of terminal aorta, the primary branches of the ABDOMINAL AORTA, as in aortoiliac obstruction. Leriche syndrome usually occurs in males and is characterized by IMPOTENCE, absence of a pulse in the femoral arteries, weakness and numbness in the lower back, buttocks, hips, and lower limbs.]
Lesch-Nyhan Syndrome	D007926	[An inherited disorder transmitted as a sex-linked trait and caused by a deficiency of an enzyme of purine metabolism; HYPOXANTHINE PHOSPHORIBOSYLTRANSFERASE. Affected individuals are normal in the first year of life and then develop psychomotor retardation, extrapyramidal movement disorders, progressive spasticity, and seizures. Self-destructive behaviors such as biting of fingers and lips are seen frequently. Intellectual impairment may also occur but is typically not severe. Elevation of uric acid in the serum leads to the development of renal calculi and gouty arthritis. (Menkes, Textbook of Child Neurology, 5th ed, pp127)]
Lethargy	D053609	[A general state of sluggishness, listless, or uninterested, with being tired, and having difficulty concentrating and doing simple tasks. It may be related to DEPRESSION or DRUG ADDICTION.]
Leukemia	D007938	[A 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. Leukemias were originally termed acute or chronic based on life expectancy but now are classified according to cellular maturity. Acute leukemias consist of predominately immature cells; chronic leukemias are composed of more mature cells. (From The Merck Manual, 2006)]
Leukemia L1210	D007939	[An experimental LYMPHOCYTIC LEUKEMIA of mice.]
Leukemia L5178	D007940	[An experimental lymphocytic leukemia of mice.]
Leukemia P388	D007941	[An experimental lymphocytic leukemia originally induced in DBA/2 mice by painting with methylcholanthrene.]
Leukemia, B-Cell	D015448	[A malignant disease of the B-LYMPHOCYTES in the bone marrow and/or blood.]
Leukemia, Basophilic, Acute	D015471	[A rare acute myeloid leukemia in which the primary differentiation is to BASOPHILS. It is characterized by an extreme increase of immature basophilic granulated cells in the bone marrow and blood. Mature basophils are usually sparse.]
Leukemia, Biphenotypic, Acute	D015456	[An acute leukemia exhibiting cell features characteristic of both the myeloid and lymphoid lineages and probably arising from MULTIPOTENT STEM CELLS.]
Leukemia, Eosinophilic, Acute	D015472	[A rare acute myeloid leukemia characterized by abnormal EOSINOPHILS in the bone marrow.]
Leukemia, Erythroblastic, Acute	D004915	[A myeloproliferative disorder characterized by neoplastic proliferation of erythroblastic and myeloblastic elements with atypical erythroblasts and myeloblasts in the peripheral blood.]
Leukemia, Experimental	D007942	[Leukemia induced experimentally in animals by exposure to leukemogenic agents, such as VIRUSES; RADIATION; or by TRANSPLANTATION of leukemic tissues.]
Leukemia, Feline	D016582	[A neoplastic disease of cats frequently associated with feline leukemia virus infection.]
Leukemia, Hairy Cell	D007943	[A neoplastic disease of the lymphoreticular cells which is considered to be a rare type of chronic leukemia; it is characterized by an insidious onset, splenomegaly, anemia, granulocytopenia, thrombocytopenia, little or no lymphadenopathy, and the presence of "hairy" or "flagellated" cells in the blood and bone marrow.]
Leukemia, Large Granular Lymphocytic	D054066	[A spectrum of disorders characterized by clonal expansions of the peripheral blood LYMPHOCYTE populations known as large granular lymphocytes which contain abundant cytoplasm and azurophilic granules. Subtypes develop from either CD3-negative NATURAL KILLER CELLS or CD3-positive T-CELLS. The clinical course of both subtypes can vary from spontaneous regression to progressive, malignant disease.]
Leukemia, Lymphocytic, Chronic, B-Cell	D015451	[A chronic leukemia characterized by abnormal B-lymphocytes and often generalized lymphadenopathy. In patients presenting predominately with blood and bone marrow involvement it is called chronic lymphocytic leukemia (CLL); in those predominately with enlarged lymph nodes it is called small lymphocytic lymphoma. These terms represent spectrums of the same disease.]