Biomaterial Database

A false-positive scan for testicular torsion and false-negative scan for epididymitis. 1990

A S Rosenson, and A Ali, and E W Fordham, and A Chaviano

Department of Diagnostic Radiology and Nuclear Medicine, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois 60612.

A 17-year-old boy underwent a radionuclide scan for testicular torsion. The scan demonstrated a cold defect with a warm ring, indicating a "missed" testicular torsion. Operative findings, however, demonstrated epididymitis. A false-positive radionuclide study is described in a patient with epididymitis and the literature of scintigraphy in testicular torsion is reviewed.

UI	MeSH Term	Description	Entries
D008297	Male		Males
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
D004823	Epididymitis	Inflammation of the EPIDIDYMIS. Its clinical features include enlarged epididymis, a swollen SCROTUM; PAIN; PYURIA; and FEVER. It is usually related to infections in the URINARY TRACT, which likely spread to the EPIDIDYMIS through either the VAS DEFERENS or the lymphatics of the SPERMATIC CORD.	Epididymitides
D005188	False Negative Reactions	Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)	False Negative Reaction,Reaction, False Negative,Reactions, False Negative
D005189	False Positive Reactions	Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)	False Positive Reaction,Positive Reaction, False,Positive Reactions, False,Reaction, False Positive,Reactions, False Positive
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D013086	Spermatic Cord Torsion	The twisting of the SPERMATIC CORD due to an anatomical abnormality that left the TESTIS mobile and dangling in the SCROTUM. The initial effect of testicular torsion is obstruction of venous return. Depending on the duration and degree of cord rotation, testicular symptoms range from EDEMA to interrupted arterial flow and testicular pain. If blood flow to testis is absent for 4 to 6 h, SPERMATOGENESIS may be permanently lost.	Testicular Torsion,Torsion Of Testicular Cord,Spermatic Cord Torsions,Testicular Torsions,Torsion, Spermatic Cord,Torsion, Testicular,Torsions, Spermatic Cord,Torsions, Testicular
D016284	Technetium Tc 99m Pentetate	A technetium imaging agent used in renal scintigraphy, computed tomography, lung ventilation imaging, gastrointestinal scintigraphy, and many other procedures which employ radionuclide imaging agents.	Tc 99m-DTPA,Tc-DTPA,Technetium-DTPA,Technetium (99m) Pentetate,Technetium Pentetic Acid,Technetium diethylenetriamine pentaacetic acid,99m-DTPA, Tc,Pentetic Acid, Technetium,Tc 99m DTPA,Technetium DTPA