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Detection of inflammation/infection with human polyclonal immunoglobulin G labelled with 99Tcm. 1994

A Jiménez-Heffernan, and J L Villanueva, and A Moral, and A Rebollo, and F M González, and M Ureña, and J M López-Ruiz, and J M Llamas-Elvira, and A Mateo
Nuclear Medicine Service, Hospital Reina Sofía, Cordoba, Spain.

Radiolabelled human polyclonal immunoglobulin G (IgG) has been successful in identifying inflammatory/infectious processes in human and animal models. We studied 71 patients with suspicion of inflammation of varied origin and location (44 of musculoskeletal location and 27 other) using 99Tcm. IgG images correctly identified 21/22 inflammatory sites of musculoskeletal origin and only 4/14 sites of soft-tissue location. Five false negative studies corresponded to granulomatous processes, three of them tuberculosis. Four false positive studies were obtained in the musculoskeletal group corresponding to three synovial tumours and a Charcot joint. No false positive results were seen in the soft tissue group. 99Tcm-IgG performs well in the identification of bone-joint lesions and rules out non-inflammatory conditions (with the important exception of tumours). The role of 99Tcm-IgG in soft-tissue inflammatory sites, especially in highly vascular organs is inferior, with a high yield of false negative studies. Granulomatous lesions probably represent situations of low or absent IgG uptake.

UI MeSH Term Description Entries
D007074 Immunoglobulin G The major immunoglobulin isotype class in normal human serum. There are several isotype subclasses of IgG, for example, IgG1, IgG2A, and IgG2B. Gamma Globulin, 7S,IgG,IgG Antibody,Allerglobuline,IgG(T),IgG1,IgG2,IgG2A,IgG2B,IgG3,IgG4,Immunoglobulin GT,Polyglobin,7S Gamma Globulin,Antibody, IgG,GT, Immunoglobulin
D007136 Immunoglobulins Multi-subunit proteins which function in IMMUNITY. They are produced by B LYMPHOCYTES from the IMMUNOGLOBULIN GENES. They are comprised of two heavy (IMMUNOGLOBULIN HEAVY CHAINS) and two light chains (IMMUNOGLOBULIN LIGHT CHAINS) with additional ancillary polypeptide chains depending on their isoforms. The variety of isoforms include monomeric or polymeric forms, and transmembrane forms (B-CELL ANTIGEN RECEPTORS) or secreted forms (ANTIBODIES). They are divided by the amino acid sequence of their heavy chains into five classes (IMMUNOGLOBULIN A; IMMUNOGLOBULIN D; IMMUNOGLOBULIN E; IMMUNOGLOBULIN G; IMMUNOGLOBULIN M) and various subclasses. Globulins, Immune,Immune Globulin,Immune Globulins,Immunoglobulin,Globulin, Immune
D007249 Inflammation A pathological process characterized by injury or destruction of tissues caused by a variety of cytologic and chemical reactions. It is usually manifested by typical signs of pain, heat, redness, swelling, and loss of function. Innate Inflammatory Response,Inflammations,Inflammatory Response, Innate,Innate Inflammatory Responses
D007719 Knee Joint A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA. Superior Tibiofibular Joint,Joint, Knee,Joint, Superior Tibiofibular,Knee Joints,Superior Tibiofibular Joints,Tibiofibular Joint, Superior
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009140 Musculoskeletal Diseases Diseases of the muscles and their associated ligaments and other connective tissue and of the bones and cartilage viewed collectively. Orthopedic Disorders,Musculoskeletal Disease,Orthopedic Disorder
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011877 Radionuclide Imaging The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph. Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children

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