Internal hernia through the falciform ligament
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LETTER TO THE EDITOR
Internal hernia through the falciform ligament O. Armstrong
Received: 21 June 2013 / Accepted: 24 August 2013 / Published online: 26 September 2013 The Author(s) 2013. This article is published with open access at Springerlink.com
Dear Editor, I read with great interest the paper published in Hernia by Egle et al. [1], reporting Internal hernias through the falciform ligament: a case series and comprehensive literature review of an increasingly common pathology, for at least three reasons. Previously I would like to congratulate the authors for their report, rare by the incidental finding, even if it is an ‘‘increasingly common pathology’’; well documented with nice pictures, CT Scan and interesting drawings. It gives me the opportunity to debate about Internal hernias: different types and what can be really considered as so? We published our clinical experience of 14 cases in 2007 and precise the anatomical basis of internal hernias [2]. First of all, this type of bowel obstruction is very rare. It remains within the abdominal cavity and three types may be described. According to the orifice it is easy to distinguish them. 1.
2.
Through a normal orifice: omental or epiploic foramen (so-called Winslow’s foramen). It supposes two predisposing factors: a larger foramen than usual and a high mobility of the colon or a long mesentery. There is no specific cause and the hole is nothing but the entrance of the foramen bursae omentalis. It represents only 6–10 % of series [1, 2]. The orifice can be paranormal, with two main places: retrocaecal or para and retro duodenal. It is the most
O. Armstrong (&) CCDE, Hoˆtel Dieu, Centre Hospitalier Universitaire, Place Alexis Ricordeau, 44093 Nantes Cedex 1, France e-mail: [email protected]
3.
frequent type: 50–55 % [1]. Here there is a real peritoneal sac or fossa. The orifice can also be abnormal realizing a hole in ligament such as the falciform ligament of the liver, omentum [3] or a mesentery. Its incidence is 36 % [2].
We report here a photo of such defect, an asymptomatic and isolated hole through the falciform ligament of the liver, found during another surgery (Fig. 1). In our series of 14 cases [2], we reported bowel obstruction through all the types. Two through the normal epiploic foramen, eleven in a peritoneal fossa with five different locations, and one case through a pathological orifice. Secondarily, the authors proposed several aetiologies when it occurs in such location through the falciform ligament. In most cases, it is a congenital defect, in more than 25 % [1]. It can be associated with other hole. Such a pathological orifice formed in a mesenteric or omentum may inquire about bowel atresia [4]? Rarely (\5 %) defects with herniation can be provoked by trauma or pregnancy [1]. It can also be done by a previous surgery, specially by laparoscopic approach. Iatrogenic defects are increasingly common pathologies, mainly during the last decade [1]. The retractor can be the first responsible. Other causes such as inflamma
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