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Abdom Imaging. 2013 Apr;38(2):260-4. doi: 10.1007/s00261-012-9889-z.

Spigelian hernia: CT findings and clinical relevance.

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Service d'Imagerie Digestive et Génito-urinaire, CHU Besançon, Hôpital Jean Minjoz, 3 bvd Fleming, 25030, Besançon, France.



The purpose of our study was to evaluate the clinical relevance of preoperative CT in distinguishing between the two subtypes of spigelian hernia (SH).


We reviewed retrospectively the CT images of 35 patients. The patients were divided into two groups on the basis of the SH subtype: interstitial SH group (n = 15) and subcutaneous SH group (n = 20). Clinical characteristics of patients and CT findings were analyzed. Bowel ischemia on surgery was also noted.


Sixteen right hernias and 19 left hernias were observed. Fifteen interstitial SH (43%) and 20 subcutaneous SH (57%) were found. No type of content showed a statistically significant association with one or other subtype of SH. Nine of the 26 patients presenting with SH with SB content showed signs of SBO on CT. Closed-loop SBO on CT was present in 5 of the 26 patients with SB content. An interstitial SH was observed in all of these 5 patients (p = 0.039). Surgery was performed on 10 patients. Bowel ischemia was found on surgery in 4 patients and showed no statistically significant association with a particular subtype of SH (p = 0.6).


Our study shows the importance of performing CT in SH. CT provides the diagnosis of SH, shows SH content, and demonstrates the presence of SBO or closed-loop SBO. Moreover, the distinction between the two subtypes of SH on CT appears to be of clinical relevance since closed-loop SBO is statistically associated with interstitial SH and the optimal surgical approach may differ.

[Indexed for MEDLINE]

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