Research article summary:

Sonography of intramuscular myxomas: the bright rim and bright cap signs.

Full Abstract

OBJECTIVE:
The objective of this study was to retrospectively review sonographic images of pathologically proven soft tissue myxomas to determine whether a sonographic correlate to the bright rim and bright cap signs described in the magnetic resonance imaging literature is present.

METHODS:
The study group consisted of 6 patients with pathologically proven soft tissue myxomas (1 man and 5 women; age range, 41-72 years; mean, 56.5 years). The available sonographic images for each subject were retrospectively reviewed by 2 authors (L.F. and K.F.), with agreement reached by consensus. Among other findings, images were also reviewed for a peripheral rim of increased echogenicity (termed the "bright rim sign") and for the presence of a triangular hyperechoic area adjacent to at least one of the poles of the mass (termed the "bright cap sign").

RESULTS:
The bright rim and bright cap signs were seen in 5 (83%) of the 6 myxomas. The single case without the bright cap sign was not the same case as the one lacking the bright rim sign.

CONCLUSIONS:
The sonographic bright rim and bright cap signs were associated with 5 (83%) of the 6 intramuscular myxomas. These findings correlate with their magnetic resonance imaging equivalents, which are well documented in the literature, due to muscle atrophy and adjacent fatty infiltration. Recognition of these features may assist in a more accurate sonographic diagnosis before biopsy.

This information was obtained from the public area of Pubmed, part of the National Library of Medicine (NLM). Abstract text and other information may be subject to copyright.

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Author information

First Name	LastName	Initials
Gandikota	Girish	G
David A	Jamadar	DA
David	Landry	D
Karen	Finlay	K
Jon A	Jacobson	JA
Lawrence	Friedman	L

Affiliation: Department of Radiology, University of Michigan, 1500 E Medical Center Dr, TC-2910, Ann Arbor, Michigan 48109-0326, USA. ggirish@umich.edu

Grants:

Journal and publication information

Publication Type: Journal Article

Journal: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine (J Ultrasound Med).

Reference: 2006-Jul; vol 25 (issue 7) : pp 865-9; quiz 870-1

Language: eng

PMID: 16798897 (status: MEDLINE) (last retrieval date: 12/12/2007)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Male
Middle Aged
Muscle Neoplasms - pathology; ultrasonography
Myxoma - ultrasonography
Retrospective Studies

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