85544, LE Cell Prep) ist ein Diagnosetest für
), die auf einer immunologischen In-vitro-Reaktion zwischen basiert die Autoantikörper des Patienten gegen nukleäre Antigene und beschädigte Kerne im Testmedium.
Medical definition of LE cell
: a neutrophil, particularly found in patients with lupus erythematosus, with a characteristic histological appearance that has phagocytosed the damaged nucleus of another cell, which has bound to a specific antibody Has. — also called lupus erythematosus cell.
The L.E. Cell testing is an empirical technique that has proved to be invaluable in the diagnosis of systemic lupus erythematosus (SLE). The test is based on the presence of an unknown abnormal substance in the plasma and certain other body fluids of many patients with SLE.
Lupus erythematosus (LE) cells are thought to represent phagocytosis by granulocytes from cell nuclei whose DNA has been “depolymerized” and opsonized by serum factors, most likely antinuclear antibodies and C3b.
An LE cell (lupus erythematosus cell), also known as a Hargraves cell, is a neutrophil or macrophage that has phagocytosed (swallowed) the denatured nuclear material of another cell. The denatured material is an absorbed hematoxylin body (also called LE body).
The Lupus Erythematosus (LE) Cell Test (synonyms: LE prep, LE phenomenon; CPT No. 85544, LE Cell Prep) is a diagnostic test for systemic lupus erythematosus (SLE) based on an in vitro immunological Reaction between the patient’s autoantibodies against nuclear antigens and damaged nuclei in the test medium.
Examination of a urine sample may show elevated levels of protein or red blood cells in the urine, which can occur if lupus has damaged your kidneys. Antinuclear antibody (ANA) test. A positive test for the presence of these antibodies produced by your immune system indicates a stimulated immune system.
Your doctor will look for rashes and other signs that something is wrong. Blood and urine tests. The antinuclear antibody (ANA) test can show if your immune system is more likely to make the autoantibodies of lupus. Most people with lupus test positive for ANA.
The “tart cell” is a blood granulocyte that has penetrated an intact cell nucleus with well-preserved chromatin. A pseudo-LE cell is a granulocyte or monocyte with a phagocytosed nuclear mass characterized by varying degrees of preserved nuclear structure and an intensely basophilic nuclear border.
Monocytes that have taken up unlysed nuclei are called “Tart cells,” so named because they resemble cells found in bone marrow smears from Mr. Tart, who was a patient with , observed and reported by the Mayo Clinic.
The American clinical hematologists Malcolm Hargraves and Robert Morton, in collaboration with the laboratory technician Helen Richmond, were the first to describe the LE cell . They had observed two unusual phenomena in several bone marrow preparations, which they called the “Tart cell” and the “LE cell”.
Libman-Sacks endocarditis, also known as nonbacterial thrombotic endocarditis (NBTE) or marantic endocarditis, describes a wide range of pathologies ranging from very small particles that can only be seen with a microscope to too large vegetations on previously normal heart valves (most often aorta and mitral).