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Browse canonical concepts by label, domain, node type, prefix and encoded class.

1,942 results

Current membership scope: Domain and all descendants

ConceptNode typeBase domainMatched membershipIdentifier
Limit of Detection
Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure.
Instrument calibration methodLaboratory MedicineLaboratory Medicine [base]AMW:TECH:050430
Limulus Test
Sensitive method for detection of bacterial endotoxins and endotoxin-like substances that depends on the in vitro gelation of Limulus amebocyte lysat…
Immunologic testLaboratory MedicineLaboratory Medicine [base]AMW:TECH:010040
Linguine sign
breast-MRI sign of intracapsular breast implant rupture; signal strands are the implant shell floating in silicone
Radiological SignRadiologyRadiology [base]AMW:RAD:110156
Lingula
Lingula of left upper lobe.
Radiological SignRadiologyRadiology [base]AMW:RAD:020076
Lipid Accumulation Product
An index for monitoring the accumulation of lipids based on the WAIST CIRCUMFERENCE measurement and the level of TRIGLYCERIDES circulating in the blo…
Biochemical testLaboratory MedicineLaboratory Medicine [base]AMW:TECH:010716
Liquid Biopsy
Obtaining material for pathological examination and analysis, from bodily fluids. Material retrieved includes CELL-FREE NUCLEIC ACIDS; CELL-DERIVED M…
Histopathology methodPathologyLaboratory Medicine [role_derived]AMW:TECH:010080
Liquid Chromatography-Mass Spectrometry
A microanalytical technique combining mass spectrometry and liquid chromatography for the qualitative as well as quantitative determinations of compo…
Chromatography methodLaboratory MedicineLaboratory Medicine [base]AMW:TECH:050065
Liquid Phase Microextraction
Miniaturized methods of liquid-liquid extraction.
Analytical chemistry methodLaboratory MedicineLaboratory Medicine [base]AMW:TECH:050042
Liquid-Liquid Extraction
The removal of a soluble component from a liquid mixture by contact with a second liquid, immiscible with the carrier liquid, in which the component …
Analytical chemistry methodLaboratory MedicineLaboratory Medicine [base]AMW:TECH:050041
Liver
Hepatic shadow/upper liver margin beneath right hemidiaphragm.
Radiological SignRadiologyRadiology [base]AMW:RAD:020030
Liver Function Tests
Blood tests that are used to evaluate how well a patient's liver is working and also to help diagnose liver conditions.
Functional investigationInvestigationInvestigation [base]AMW:TECH:010508
Lobar Consolidation
Radiological opacity involving a lung lobe, classically associated with lobar pneumonia.
Radiological SignRadiologyRadiology [base]AMW:RAD:115001
Local Field Potential Measurement
Recording of brain electrical activities recorded by a small-size electrode in the brain. It measures electric potential in the extracellular medium …
Diagnostic conceptInvestigationInvestigation [base]AMW:TECH:010527
Local Lymph Node Assay
The local lymph node assay (LLNA) is an alternative method for the identification of chemicals that have the ability to cause skin sensitization and …
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010206
Loosers zoneRadiological SignRadiologyRadiology [base]AMW:RAD:110345
Low-Grade Proteinuria
Low-grade proteinuria used as a ClinicalGraph target concept for lab_medicine / lab_finding.
Laboratory FindingLaboratory MedicineLaboratory Medicine [base]AMW:FIND:120016
LSCA, indentation of coarct and post
stenotic aortic dilatation form "3" Football Signoval shaped lucency of large - pneumoperitoneum seen on supine abdominal radiographs usually in infa…
Radiological SignRadiologyRadiology [base]AMW:RAD:110095
Luftsichel sign
sickle-shaped, over expanded superior segment of LLL interposed between aortic arch and atelectatic LUL
Radiological SignRadiologyRadiology [base]AMW:RAD:110150
Lumbar vertebrae
lumbar vertebral column segment
Radiological AnatomyRadiologyRadiology [base]AMW:RAD:030023
Lumbosacral symphysis
L5–S1 disc joint
Radiological AnatomyRadiologyRadiology [base]AMW:RAD:030079
Luminescent Measurements
Techniques used for determining the values of photometric parameters of light resulting from LUMINESCENCE.
Analytical chemistry methodLaboratory MedicineLaboratory Medicine [base]AMW:TECH:050122
Lung Compliance
The capability of the LUNGS to distend under pressure as measured by pulmonary volume change per unit pressure change. While not a complete descripti…
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010613
Lung Volume Measurements
Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle.
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010614
Lung Zones (Upper/Middle/Lower)
Division of lungs into upper, middle, and lower zones on a PA CXR for systematic description.
Radiological SignRadiologyRadiology [base]AMW:RAD:020010
Lymph Node Ratio
The ratio of metastatic to total examined LYMPH NODES.
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010087
Lymphocyte Activation
Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mi…
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010175
Lymphocyte Culture Test, Mixed
Measure of histocompatibility at the HL-A locus. Peripheral blood lymphocytes from two individuals are mixed together in tissue culture for several d…
Microbiology testLaboratory MedicineInvestigation [role_derived], Laboratory Medicine [base]AMW:TECH:010170
Lymphocyte-Predominant Cerebrospinal Fluid Pleocytosis
Increased cerebrospinal fluid leukocytes with lymphocyte predominance.
Laboratory FindingLaboratory MedicineLaboratory Medicine [assigned]AMW:FIND:140022
Lymphography
Radiographic study of the lymphatic system following injection of dye or contrast medium.
Physiologic measurementInvestigationInvestigation [base]AMW:TECH:010378
Lymphoscintigraphy
Radionuclide imaging of the LYMPHATIC SYSTEM.
Imaging InvestigationRadiologyRadiology [base]AMW:TECH:010407