"Doughnut" sign in brain scanning

The significance of the "doughnut" sign at present is relegated to characterizing the morphology of a lesion. The use of the "doughnut" sign in differential diagnosis should not be attempted except in specific clinical contexts, and never excluding other evidence. The "dough...

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Veröffentlicht in:	American journal of roentgenology (1976) 1976-04, Vol.126 (4), p.842-852
Hauptverfasser:	Tarcan, YA, Fajman, W, Marc, J, Berg, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Adult Aged Angiography Brain - blood supply Brain Abscess - diagnosis Brain Abscess - diagnostic imaging Brain Diseases - diagnosis Brain Diseases - diagnostic imaging Brain Neoplasms - diagnosis Brain Neoplasms - diagnostic imaging Cerebral Hemorrhage - diagnosis Child Female Hematoma, Subdural - diagnosis Humans Infarction - diagnosis Infarction - diagnostic imaging Inflammation - diagnosis Male Meningioma - diagnosis Middle Aged Neoplasm Metastasis Radionuclide Imaging Skull Neoplasms - pathology Tomography, X-Ray
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Beschreibung
Zusammenfassung:	The significance of the "doughnut" sign at present is relegated to characterizing the morphology of a lesion. The use of the "doughnut" sign in differential diagnosis should not be attempted except in specific clinical contexts, and never excluding other evidence. The "doughnut" sign in scanning together with other studies such as angiography and computerized axial tomography gives additional characterizing data in the neuroradiologic evaluation of a patient.
ISSN:	0361-803X 1546-3141
DOI:	10.2214/ajr.126.4.842