Subcutaneous granuloma annulare: MR imaging and literature review |
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Authors: | J. E. Vandevenne C. G. Colpaert A. M. De Schepper |
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Affiliation: | (1) Department of Radiology, Universitair Ziekenhuis Antwerpen, University of Antwerp, Wilrijkstraat 10, B-2650 Edegem, Belgium, BE;(2) Department of Pathology, Universitair Ziekenhuis Antwerpen, University of Antwerp, Wilrijkstraat 10, B-2650 Edegem, Belgium, BE;(3) Department of Radiology, Stanford University Medical School, Lucas MRI Center P-260, Stanford, CA 94305-5488, XX |
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Abstract: | Subcutaneous granuloma annulare (SGA) is little known to radiologists. Better knowledge of this lesion may prompt accurate diagnosis. A typical case is presented with plain radiography, ultrasound and MR imaging, and is confirmed by histology. When an otherwise healthy child presents with a rapidly growing, solitary, nontender, subcutaneous soft tissue mass, located on the scalp or extensor aspect of the limbs, that radiologically presents as an indistinct radiodense and hypoechoic mass, isointense to muscle on T1- and slightly hypointense to fat on T2-weighted MR images, without calcifications, bone involvement or extracompartmental invasion, SGA should be suspected. Received 5 June 1997; Revision received 29 October 1997; Accepted 8 January 1998 |
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Keywords: | : Subcutaneous granuloma annulare MR imaging Benign rheumatoid nodule Pseudorheumatoid nodule |
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