Echogenicity: analysis, significance, and masking

Kurtz, A B; Dubbins, P A; Rubin, CS; Kurtz, RJ; Cooper, HS; Cole-Beuglet, C; Goldberg, B. B.

doi:10.2214/ajr.137.3.471

Cited by 30 publications

(11 citation statements)

References 0 publications

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“…A small fatty myelolipoma may be masked by adjacent echogenic retnoperitoneal fat. Unless displacement of nearby organs is shown, the tumor may be unrecognized [9]. Furthermore, on sonograms, apparent disruption and posterior displacement ofthe diaphnagmatic echoes could be appreciated only when the tumor was larger than 4 cm.…”

Section: Resultsmentioning

confidence: 99%

Myelolipoma of the adrenal gland: sonographic and CT features

Musante¹,

Derchi²,

Zappasodi³

et al. 1988

American Journal of Roentgenology

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Section: Resultsmentioning

confidence: 99%

Myelolipoma of the adrenal gland: sonographic and CT features

Musante¹,

Derchi²,

Zappasodi³

et al. 1988

American Journal of Roentgenology

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“…As the pancreatic echo intensity increases, it approache s that of the adjacent re troperitoneal, mesente ric, and peripancreatic fat and soft tissues, blending imperceptibly wit h these structures. The blending of areas of increased echogenicity with adjacent normally echogenic structures has been termed by Kurtz et al 20 the "masking sign." It is probable, therefore, that our measurements in patients with cystic fibrosis included some of the surrounding tissue.…”

Section: Discussionmentioning

confidence: 99%

Chronic pancreatitis: the diagnostic significance of pancreatic size and echo amplitude.

Shawker¹,

Linzer²,

Hubbard³

1984

Journal of Ultrasound in Medicine

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Pancreatic size and pancreatic echo amplitude were examined to determine their value for distinguishing chronic pancreatitis from normal. Using patients with cystic fibrosis as a model for chronk• pancreatitis, a prospective study was performed comparing 16 patients with this disease and 16 normals. Absolute measurements of the pancreatic body and the ratio of pancreatic size to vertebral body size \\ere determined. Pancreatic echo amplitude was both measured cliniealh• from the B-scan and evaluated in a blind review h v seven observers . The p·ancreases of cystic fibrosis could he distinguished oi1 the basis of echo amplitude with sensitivity and specificity of 94 per cent and 100 per cent for direct B-scan echo amplitude measurements and 74 per cent and 88 per cent for reviewers. Pancreatic size was of no value as a distinguishing characteristic, probably because as the diseased pancreas increases in echo amplitude b y fat and fibrous tissue replacement, it blends imperceptibly with the peripancreatic soft tissues. ~leasurement of pancreatic size in chronic pancreatitis is therelore inaccurate and probably over+ estimated. (Key words: pancreas. ; pancreatic echo amplitude; chronic pun~ creatis; cystic fibrosis)

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“…If there is also fat in the peripancreatic space surrounding the pancreatic head, it is often impossible to separate pancreas from peripancreatic fat since the pancreas has the same echogenicity as its surroundings (Fig. 4) [7]. An enlarged pancreas or a pancreatic mass is therefore simulated.…”

Section: Discussionmentioning

confidence: 99%