Appendiceal abscess in a giant left-sided inguinoscrotal hernia: a rare case of Amyand hernia
© Mongardini et al. 2015
Received: 15 April 2015
Accepted: 15 July 2015
Published: 26 July 2015
The hernia of Amyand is an inguinal hernia containing the appendix in the sac. It is a rare pathology often diagnosed only intra-operatively. We report a case even more rare of a giant left-sided inguinoscrotal Amyand hernia with appendiceal abscess without clinical findings of incarceration/strangulation, occlusion, perforation, or acute scrotum and with the presence in the sac of the caecum and other anatomical structures (last ileal loops, bladder and omentum). The 68-years-old man patient successfully underwent surgical treatment only through the hernia sac (meshless repair according to Postempski technique).
KeywordsGiant inguinoscrotal hernia Amyand hernia Appendiceal abscess Surgery
Inguinal hernia defined as the protrusion of an organ or fascia through the wall of the containing cavity is one of the most frequent surgical procedures that a surgeon faces. The giant inguinoscrotal hernia is defined as such when it extends beyond the midpoint of the thigh with the patient in a upright position (Hodgkinson and McIlrath 1984). These hernias are uncommon in developed countries and patients usually refuse to admit this kind of problem for years (Cavalli et al. 2014) until the hernia causes major discomfort, especially during walking and standing, reducing the quality of life. Giant hernias can be burdened with complications such as bowel obstruction and strangulation that need emergency surgery.
The contents of inguinal hernia sac differ from case to case. The presence of appendix in an inguinal hernia sac is called hernia of Amyand, in honor of the French military surgeon Claudius Amyand (1680–1740) who, exiled in England, first successfully carried out in 1735 an appendectomy in a 11 years old boy with fecal inguinal fistula (Gupta et al. 2005; Singh et al. 2011). The hernia of Amyand with normal appendix is a rare event (about 1% of all inguinal hernias) and even more rare is a hernia with appendicitis (0, 1%) (D’Alia et al. 2003; Singh et al. 2011; Morales-Cardenas et al. 2015). Amyand hernia is more common on the right side (Pellegrino and Feldman 1992; Maeda et al. 2014); on the left side it is associated with hypermobility of the caecum or situs viscerum inversus or malrotation of the gut (Breitenstein et al. 2005; Maeda et al. 2014). A possible etiopathogenic mechanism of appendicitis in Amyand’s hernia is the reduction of blood flow due to adhesions that make the hernia not reducible and/or the vascular compression exerted on the arteriosus vessels by external inguinal ring (Sengul et al. 2011).
The Amyand hernia has been classified into four types according to its severity: type 1, with normal appendix treated with reduction or appendectomy (depending on age) and hernioplasty with mesh; type 2, with acute appendicitis without peritonitis, treated with appendectomy by an inguinal access and hernioplasty without mesh; type 3, with appendicitis and peritonitis treated with laparotomy appendectomy and hernioplasty without mesh; and type 4, with appendicitis, appendiceal mucocele or cancer and/or others abdominal comorbidities in which the most appropriate surgical treatment must be evaluated case by case (Losanoff and Basson 2008).
The Amyand hernia with normal appendix is a rare event and even more rare is a hernia with appendicitis often diagnosed only intra-operatively. We present here a case even more rare of a giant left-sided inguinoscrotal Amyand hernia with appendiceal abscess and the presence in the sac of a tract of the ascending colon, last ileal loops, a portion of bladder and omentum. This case did not present clinical findings of incarceration/strangulation, occlusion, perforation, or acute scrotum. The patient underwent successful surgical treatment only through the hernia sac with meshless repair according to Postempski technique.
A 68-years-old man who at the age of 53 years underwent transurethral resection of the prostate (TURP) for adenomyomatosis, presented in our Department of Surgical Sciences, “Umberto I” Hospital, in Rome. He had been suffering for about 10 years for an increasing left-sided inguinoscrotal hernia becoming in the last week not more reducible. Inguinal scrotal pain and septic fever appeared 30 days before the admission to our Department. Suspecting urinary infection, his clinician had prescribed antibiotic therapy which proved partially effective.
At the admission the patient was in fair general conditions without vomiting. The left emiscrotum, covered with normal skin, appeared fully occupied by hernia that extended over the middle third of the thigh. The penis was not visible. The hernia (20 × 20 cm in latero-lateral and antero-posterior diameters) was of increased consistence and not reducible. The testis was not palpable. The abdomen was treatable, without distention, but with minimal peristalsis and bowel constipated but open to gas.
The postoperative course was regular. On the third postoperative (p.o.) day the drainage was removed. On the seventh p.o. day, after doing an abdominal ultrasound that showed no postoperative complications, the patient was discharged with the advice of wearing a restraining underwear and of avoiding physical exercises for about 6 months.
The hernia of Amyand with normal appendix is a rare event (about 1% of all inguinal hernias) and even more rare is a hernia with appendicitis (0, 1%) (D’Alia et al. 2003; Singh et al. 2011). Amyand hernia is more common on the right side (Pellegrino and Feldman 1992; Maeda et al. 2014); on the left side it is associated with hypermobility of the caecum or situs viscerum inversus or malrotation of the gut (Breitenstein et al. 2005; Maeda et al. 2014).
According to Losanoff and Basson that classified the Amyand hernia into four types based on its severity (Losanoff and Basson 2008), in our patient the hernia was classified of type 4. The risk of infection of the mesh could increase in case of partial resection of the colon or, as in our case, of the omentum (Hutchinson 1993; Monestiroli et al. 2007). In our patient general conditions and local examination were partly altered by antibiotic therapy. Therefore we diagnosed a simple giant hernia to be treated in election although not reducible. We have not considered necessary preoperative radiological investigations such as ultrasound or CT, although the latter is considered diagnostic for Amyand hernia (Luchs et al. 2000; Monestiroli et al. 2007).
Another important issue in the giant hernias is the increase of intra-abdominal and intra-thoracic pressure that follows the reduction of the contents into the peritoneal cavity. The increased pressure can cause, in severe cases, a respiratory or cardiac failure with compartmental syndrome resulting into worse morbidity and mortality rates (Kyle et al. 1990; Mehendal et al. 2000). In addition, closing the abdominal wall under tension is linked with a greater risk of wound dehiscence; in fact, 30% of patients who undergo such procedures suffer from hernia recurrence and/or wound dehiscence (Stoppa 1989). Recently some authors proposed a progressive preoperative pneumoperitoneum preparation, i.e. Goni Moreno protocol (Sabbagh et al. 2012), and/or elective resection of the herniated abdominal viscera (colon, ileum or omentum) to reduce endocavitary pressure (Patsas et al. 2010; Cavalli et al. 2014). The choice of the surgical access is still now discussed. The surgical incisions are different, depending on the severity of the clinical status: pararectal enlarged to the scrotum (Cavalli et al. 2014), median laparotomy or inguinal incision prolonged to the scrotum should be considered (Ek et al. 2006; Valliattu and Kingsnorth 2008). In our patient the prolonged inguinal incision has allowed us to completely isolate the sac, to resect the appendix and the omentum, to reduce the hernia and to perform the reconstructive surgery.
To the best of our knowledge, it is impossible to establish the cases of Amyand hernia that led to appendiceal abscess (Al-Mayoof and Al-Ani 2014; Michalinos et al. 2014) and the present report is certainly one of these very rare cases. In agreement with other findings (Karanikas et al. 2015), we believe that, owing to the rarity of Amyand hernia and the wide variance of its clinical characteristics, every case provides useful information toward the treatment of this type of hernia until standardization of treatment is achieved.
Inguinal hernia is one of the most frequent surgical procedures that a surgeon faces and Amyand hernia is a rare event whose management involves a laborious surgical technique. The surgical strategy that we performed (inguinoscrotal incision, abscess drainage, accurate debridment, appendectomy and omentectomy, open repair without mesh) was the best treatment for an exceptional case of Aymand hernia. The patient recovered uneventfully and was discharged home on postoperative day 7. At control at 30 days the patient was asymptomatic. He claimed to be satisfied with the treatment received and that had returned to normal activities.
In conclusion we would like to highlight the rarity of the case reported and the technical issues related to the presence in the hernia sac of huge appendiceal abscess, other viscera and necrotic areas. Also we stressed the success of our surgical approach achieved only through the hernia sac, by a simple inguinal-scrotal incision and with the placement of a transabdominal drainage positioned on the finger guide introduced through internal inguinal ring. We believe that our case may contribute to Amyand hernia surgical treatment standardization. Anyway the surgeon should be ready to tailor the surgical strategy by customizing the procedure to the single patient.
MM has performed the surgery, evaluated the patient, and drafted and revised the manuscript. AM evaluated the patient, carried out the literature review, and drafted and revised the manuscript. GL performed the surgery and the data, evaluated the patient, and drafted and revised the manuscript. LD, VD and PU performed the data and image gathering, assisted in the literature review, as well as in the drafting and revision of the manuscript. FC performed final revision of the manuscript. All authors read and approved the final manuscript.
We thank the patient for his cooperation in the study.
Compliance with ethical guidelines
Competing interests The authors declare that they have no competing interests.
Consent for publication Written informed consent was obtained from the patient for the surgical treatment and the publication of this report and any accompanying images.
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- Al-Mayoof AF, Al-Ani BH (2014) Left-sided Amyand hernia: report of two cases with review of literature. Eur J Pediatr Surg Rep 2(1):63–66Google Scholar
- Breitenstein S, Eisenbach C, Wille G, Decurtins M (2005) Incarcerated vermiform appendix in a left-sided inguinal hernia. Hernia 9(1):100–102View ArticleGoogle Scholar
- Cavalli M, Biondi A, Bruni PG, Campanelli G (2014) Giant inguinal hernia: the challenging hug technique. Hernia. doi:https://doi.org/10.1007/s10029-014-1324-7 Google Scholar
- D’Alia C, Lo Schiavo MG, Tonante A, Taranto F, Gagliano E, Bonanno L et al (2003) Amyand’s hernia: case report and review of literature. Hernia 7(2):89–91View ArticleGoogle Scholar
- Ek EW, Ek ET, Bingham R, Wilson J, Mooney B, Banting SW et al (2006) Component separation in the repair of a giant inguinoscrotal hernia. ANZ J Surg 76(10):950–952View ArticleGoogle Scholar
- Gupta S, Sharma R, Kaushik R (2005) Left sided Amyand’s hernia. Singapore Med J 46(8):424–425Google Scholar
- Hodgkinson DJ, McIlrath DC (1984) Scrotal reconstruction for giant inguinal hernias. Surg Clin N Am 64(2):307–313Google Scholar
- Hutchinson R (1993) Amyand’s hernia. J R Soc Med 86(2):104–105Google Scholar
- Karanikas I, Ioannidis A, Siaperas P, Efstathiou G, Drikos I, Economou N (2015) Incarcerated Amyand hernia with simultaneous rupture of an adenocarcinoma in an inguinal hernia sac: a case report. J Med Case Rep 9(1):120View ArticleGoogle Scholar
- Kyle SM, Lovie MJ, Dowle CS (1990) Massive inguinal hernia. Br J Hosp Med 43(5):383–384Google Scholar
- Losanoff JE, Basson MD (2008) Amyand hernia: a classification to improve management. Hernia 12(3):325–326View ArticleGoogle Scholar
- Luchs JS, Halpern D, Katz DS (2000) Amyand’s hernia: prospective CT diagnosis. J Comput Assist Tomogr 24(6):8884–8886View ArticleGoogle Scholar
- Maeda K, Kunieda K, Kawai M, Nagao N, Tanaka C, Oida Y et al (2014) Giant left-sided inguinoscrotal hernia containing the cecum and appendix (giant left-sided Amyand’s hernia). Clin Case Rep 2(6):254–257View ArticleGoogle Scholar
- Mehendal FV, Taams KO, Kingsnorth AN (2000) Repair of a giant inguinoscrotal hernia. Br J Plast Surg 53(6):525–529View ArticleGoogle Scholar
- Michalinos A, Moris D, Vernadakis S (2014) Amyand’s hernia: a review. Am J Surg 207(6):989–995View ArticleGoogle Scholar
- Monestiroli UM, Bondurri A, Gandini F, Lenna G, Vellini S, Danelli P (2007) Giant inguinoscrotal hernia. Tech Coloproctol 11(3):283–284View ArticleGoogle Scholar
- Morales-Cardenas A, Ploneda-Valencia CF, Sainz-Escarrega VH, Hernandez-Campos AC, Navarro-Muniz E, Lopez-Lizarraga CR et al (2015) Amyand hernia: case report and review of the literature. Ann Med Surg (Lond) 4(2):113–115View ArticleGoogle Scholar
- Patsas A, Tsiaousis P, Papaziogas B, Koutelidakis I, Goula C, Atmatzidis K (2010) Repair of a giant inguinoscrotal hernia. Hernia 14(3):305–307View ArticleGoogle Scholar
- Pellegrino JM, Feldman SD (1992) Case report: acute appendicitis in an inguinal hernia. N J Med 89(3):225–226Google Scholar
- Sabbagh C, Dumont F, Fuks D, Yzet T, Verhaeghe P, Regimbeau JM (2012) Progressive preoperative pneumoperitoneum preparation (the Goni Moreno protocol) prior to large incisional hernia surgery: volumetric, respiratory and clinical impacts. A prospective study. Hernia 16(1):33–40View ArticleGoogle Scholar
- Sengul I, Sengul D, Aribas D (2011) An elective detenction of an Amyand’s hernia with an adhesive caecum to the sac: report of rare case. N Am J Med Sci 3(8):391–393View ArticleGoogle Scholar
- Singh K, Singh RR, Kaur S (2011) Amyand’s hernia. J Indian Assoc Pediatr Surg 16(4):171–172View ArticleGoogle Scholar
- Stoppa RE (1989) The treatment of complicated groin and incisional hernias. World J Surg 13(5):545–554View ArticleGoogle Scholar
- Valliattu AJ, Kingsnorth AN (2008) Single-stage repair of giant inguinoscrotal hernias using the abdominal wall component separation technique. Hernia 12(3):329–330View ArticleGoogle Scholar