The “Hay-fork” sign in the ultrasonographic diagnosis of intussuception

Alessi, V; Salerno, Giuseppe

doi:10.1007/bf01893097

Cited by 58 publications

(13 citation statements)

References 20 publications

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“…4 In previous studies, a doughnut sign and a pseudokidney sign have been used as diagnostic criteria for intussusception, 21 although these signs are now considered not to be pathognomonic as they may also be noted for some other conditions as well, including inflammatory or edematous bowel-wall thickening, hematoma, enterocolitis, volvulus, and even stool impaction in the colon. 3,4,[6][7][8][9][21][22][23][24][25] Other typical characteristic sonographic features of intussusception have been described including a crescent-indoughnut sign and a multiple-concentric-rings sign on axial scanning or a sandwich sign and a hayfork sign on longitudinal scanning.…”

Section: Discussionmentioning

confidence: 99%

Sonographic Features of Small‐bowel Intussusception in Pediatric Patients

Tiao

Wan

et al. 2001

Academic Emergency Medicine

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Objective: Small-bowel intussusception (SBI) for pediatric patients is unusual and difficult to diagnose preoperatively. This study sought to determine the sonographic findings of pediatric SBI. Methods: The sonographic features and surgical findings of 13 pediatric patients (7 boys, 6 girls; age range 4 months-15 years; average age 4 years and 2 months) with SBI encountered in the authors' hospital over a 12-year period were retrospectively reviewed. Results: Most of the patients presented with nonspecific symptoms , including vomiting, abdominal pain, and/or irritable crying. Sonographic screening in the emergency department revealed a doughnut or crescent-in-doughnut sign, or a multiple-concentric-rings sign for 11 of the 13 patients, and the lesions appeared short. Eight lesions were found in the paraumbilical or left abdominal regions. Sonographic measurement of the size of the lesions from these 11 patients ranged from 2 cm to 3.7 cm (average 2.77 cm). Subsequent barium enemas were performed for these 11 patients, none of which revealed colon lesions. Surgery revealed ileoileal intussusceptions for eight cases, jejunoileal for three, and jejunojejunal for the remaining two. Bowel ischemia or necrosis and pathologic lead points were demonstrated for seven and six patients, respectively, although none were recognized preoperatively. Conclusions: Small-bowel intussusception is often overlooked due to nonspecific clinical presentations. Sono-graphic demonstration of a 2-3-cm sized, short, doughnut-like lesion, especially in the left abdomen or paraumbilical regions, should lead to strong suspicion of SBI.

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Section: Discussionmentioning

confidence: 99%

Sonographic Features of Small‐bowel Intussusception in Pediatric Patients

Tiao

Wan

et al. 2001

Academic Emergency Medicine

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“…Intussusception also produces a characteristic appearance, with a focal mass as a lead point. The layers of the intussusceptum and the intussuscipiens show as a series of concentric rings in cross section and have been likened to a hay fork when seen in long axis [21]. Intraluminal intestinal masses causing obstruction, although rare, are also clearly seen on sonography.…”

Section: Mechanical Bowel Obstructionmentioning

confidence: 95%

Gastrointestinal tract sonography

Wilson

1996

Abdominal Imaging

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“…The bowel wall may be edematous. Free peritoneal fluid may be identified, which does not necessarily indicate the presence of peritonitis [5][6][7]. The target sign is not specific for intussusception and may be seen with other disorders.…”

Section: Discussionmentioning

confidence: 99%

Sonographic diagnosis of intussusceptions in adults

et al. 2000

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Differentiating bowel intussusception occurring in adults from other bowel diseases represents a diagnostic problem because this condition is not a common finding. Contrast radiography, computed tomography, magnetic resonance imaging, and abdominal ultrasonography are imaging techniques suitable for this diagnosis. Sonography is easy to perform, reproducible, and less invasive than the other techniques. The aim of the present study was to evaluate the diagnostic utility of abdominal sonography in four patients affected by bowel intussusception and to assess the advantages offered by this method.

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The “Hay-fork” sign in the ultrasonographic diagnosis of intussuception

Abstract: Ultrasonography was used to evaluate a palpable abdominal mass in a woman. The characteristic "hay-fork" image led to the correct diagnosis of colocolic intussusception, which had not been suspected. This sign appears to be highly specific for intussusception.

Cited by 58 publications

References 20 publications

Sonographic Features of Small‐bowel Intussusception in Pediatric Patients

Sonographic Features of Small‐bowel Intussusception in Pediatric Patients

Gastrointestinal tract sonography

Sonographic diagnosis of intussusceptions in adults

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