Lesser sac hernia through the gastrocolic ligament: CT diagnosis

Inoue, Yutaka; Nakamura, Hiroshi; Mizumoto, Seigou; Akashi, Hideo

doi:10.1007/s002619900030

Cited by 21 publications

(7 citation statements)

References 8 publications

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“…The stomach is usually displaced anteriorly and laterally. Bowel caliber change and radiating vascular markings in the mesentery of protruded bowel loops across the gastroduodenal or gastrocolic ligament is helpful in diagnosing lesser sac hernias (30).…”

Section: Internal Hernia Into the Lesser Sacmentioning

confidence: 99%

Greater and Lesser Omenta: Normal Anatomy and Pathologic Processes

Yoo¹,

Kim²,

Kim³

et al. 2007

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129

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Section: Internal Hernia Into the Lesser Sacmentioning

confidence: 99%

Greater and Lesser Omenta: Normal Anatomy and Pathologic Processes

Yoo¹,

Kim²,

Kim³

et al. 2007

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129

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“…Hernias through only one leaf of the greater omentum are classified as lesser sac hernias (Fig 13) because the intervening space between the anterior and posterior leaves of the greater omentum is continuous with the lesser sac if fusion is incomplete (47).…”

Section: Other Types Of Lesser Sac Herniamentioning

confidence: 99%

“…Herniated intestine may exit from the lesser sac into the greater peritoneal cavity through an opening other than the entry point in rare cases (Fig 13). Several combinations of entry and exit sites have been reported (42,47,49,50).…”

Section: Combined Lesser Sac Herniamentioning

confidence: 99%

Internal Hernias in the Era of Multidetector CT: Correlation of Imaging and Surgical Findings

et al. 2016

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Clinical diagnosis of internal hernias is challenging because of their nonspecific signs and symptoms. Many types of internal hernias have been defined: paraduodenal, small bowel mesentery-related, greater omentum-related, lesser sac, transverse mesocolon-related, pericecal, sigmoid mesocolon-related, falciform ligament, pelvic internal, and Roux-en-Y anastomosis-related. An internal hernia is a surgical emergency that can develop into intestinal strangulation and ischemia. Accurate preoperative diagnosis is crucial for appropriate management. Multidetector computed tomography (CT), with its thin-section axial images, high-quality multiplanar reformations, and three-dimensional images, currently plays an essential role in preoperative diagnosis of internal hernias. The diagnostic approach to internal hernias at multidetector CT includes detecting an intestinal closed loop, identifying the hernia orifice, and analyzing abnormal displacement of surrounding structures and key vessels around the hernia orifice and hernia sac. At each step, multidetector CT can depict pathognomonic findings. A saclike appearance suggests an intestinal closed loop in several types of internal hernias. Convergence, engorgement, and twisting of mesenteric vessels in the hernia orifice can be seen clearly at multidetector CT, especially with use of multiplanar reformations. For definitive diagnosis of an internal hernia, analysis of displacement of anatomic landmarks around the hernia orifice is particularly important, and thin-section images provide the required information. Detailed knowledge of the anatomy, etiology, and imaging landmarks of the various hernia types is also necessary. Familiarity with the appearances of internal hernias at multidetector CT allows accurate and specific preoperative diagnosis. (©)RSNA, 2015.

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“…Among these, herniation into the lesser sac is extremely rare with only a dozen cases described in the literature [1]. A third of these cases have been reported by Japanese authors [2][3][4], which might imply an increased incidence of lesser omental defects in the Japanese population. These internal hernias are rare because perforation of the lesser omentum is an unusual anatomic anomaly and because the location of defects high in the abdominal cavity makes them less subject to high pressure and the defect is relatively shielded by the overlying left lobe of the liver.…”

mentioning

confidence: 99%

Strangulated lesser sac hernia

Guinier

Tissot

2012

Journal of Visceral Surgery

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Internal hernias account for less than 1% of acute mechanical bowel obstruction. Because of their rarety, they are often not considered in the clinical or radiologic diagnosis of bowel obstruction; diagnosis is often delayed, and is most often made at the time of surgery. We present images obtained during the management of a strangulated transomental internal hernia; computerized tomography permitted timely preoperative diagnosis and specifically adapted surgical therapy.

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Lesser sac hernia through the gastrocolic ligament: CT diagnosis

Cited by 21 publications

References 8 publications

Greater and Lesser Omenta: Normal Anatomy and Pathologic Processes

Greater and Lesser Omenta: Normal Anatomy and Pathologic Processes

Internal Hernias in the Era of Multidetector CT: Correlation of Imaging and Surgical Findings

Strangulated lesser sac hernia

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