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Surgical Case Reports

, 5:54 | Cite as

Laparoscopic cholecystectomy for acute cholecystitis in a patient with left-sided gallbladder: a case report

  • Ryosuke Hirohata
  • Tomoyuki AbeEmail author
  • Hironobu Amano
  • Tsuyoshi Kobayashi
  • Masahiro Nakahara
  • Hideki Ohdan
  • Toshio Noriyuki
Open Access
Case Report
  • 186 Downloads

Abstract

Background

Left-sided gallbladder is a relatively rare anatomical variation that is frequently associated with a biliary system anomaly. Here, we describe a case of left-sided gallbladder with acute cholecystitis treated by laparoscopic cholecystectomy.

Case presentation

An 86-year-old man with acute upper abdominal pain was admitted to our hospital. Computed tomography demonstrated that the gallbladder was centrally dislocated and the wall enhancement was discontinued. Magnetic resonance cholangiopancreatography showed that the gallbladder wall was thickened and abnormally swollen. A laparoscopic cholecystectomy was performed. The round ligament was attached to the right side of the gallbladder, and the left-sided gallbladder was diagnosed by intraoperative findings. The patient was discharged 5 days after surgery without postoperative complications.

Conclusions

A flexible and optimal port site should be inserted in cases of left-sided gallbladder with acute cholecystitis. An assessment of the extra- and intrahepatic biliary system is essential to avoid biliary injury in cases of left-sided gallbladder with acute cholecystitis.

Keywords

Left-sided gallbladder Laparoscopic cholecystectomy Acute cholecystitis 

Abbreviations

BDI

Biliary duct injury

LC

Laparoscopic cholecystectomy

LSG

Left-sided gallbladder

Background

Left-sided gallbladder (LSG) is defined as a gallbladder whose floor is located on the left side of the round ligament of the liver [1]. Laparoscopic cholecystectomy (LC) is the current gold standard treatment for acute cholecystitis. The 2018 Tokyo guidelines demonstrated that early cholecystectomy under strict criteria could lead to good surgical outcomes [2]. Our previous data showed that early LC within 7 days after symptom onset is a feasible and safe treatment option [3]. It is important to evaluate the preoperative biliary system to prevent intraoperative biliary injury. Of note, the intraoperative biliary injury rate in cases of LSG was around 7% [4], which is extremely high. It is well known that portal and biliary system variations are strongly associated with LSG. Detecting preoperative LSG is difficult due to its rarity and the similarity of its radiological findings to those of gallbladder torsion including gallbladder dislocation and cystic duct twisting [5]. Here, we present a case of acute cholecystitis with LSG following LC with a literature review.

Case presentation

An 86-year-old man was admitted to our hospital with a 3-day history of acute abdominal pain. The patient had no previous medical history. A physical examination revealed marked right upper quadrant pain with normal bowel sounds. Murphy’s sign was positive. His vital signs were within the normal range. Abdominal ultrasonography revealed an enlarged gallbladder with surrounding fatty tissue inflammation. The blood biochemistry was essentially normal, including C-reactive protein (1.9 mg/dL) and total bilirubin (1.4 mg/dL) levels. An enhanced computed tomography examination revealed an enlarged gallbladder and incarcerated gallstone. Gallbladder wall enhancement was discontinued, and the fundus of the gallbladder was located centrally beyond the round ligament (Fig. 1). The round ligament was attached to the right umbilical portion, which was associated with the anomaly of the intrahepatic portal vein system (Fig. 2). Magnetic resonance cholangiopancreatography demonstrated the root of the cystic duct, while the middle portion of the cystic duct was unclear (Fig. 3).
Fig. 1

Abdominal contrast-enhanced computed tomography findings. The fundus of the gallbladder was located centrally beyond the round ligament (white arrow)

Fig. 2

Abdominal contrast-enhanced computed tomography findings. The intrahepatic portal vein formed the right umbilical portion (black arrow)

Fig. 3

Magnetic resonance cholangiopancreatography findings. The cystic duct (black arrow) branched from the common bile duct (white arrow). The cystic duct was unclear in the middle (black arrowhead)

With the preoperative diagnosis of grade II acute gangrenous cholecystitis according to the 2018 Tokyo guidelines or gallbladder torsion, LC was planned. The first port was inserted into the umbilicus, and an enlarged and reddish gallbladder was observed. The gallbladder was swollen; however, torsion was not detected intraoperatively. The second port was placed in the epigastric area, while others were at the right hypochondriac and right lumbar regions. The gallbladder was attached to the left side of the hepatic round ligament (Fig. 4). The cystic duct and the cystic artery were located in the normal positions. Severe inflammation and the narrow working space between the epigastric port and the gallbladder made it difficult to dissect Calot’s triangle; however, the cystic duct and the cystic artery were resected after the critical view of safety was confirmed. Due to the severe inflammation, a subtotal cholecystectomy was finally performed. The operative time was 178 min, and intraoperative blood loss was 50 mL. The pathological diagnosis was acute cholecystitis with a mucosal ulcer. The patient was discharged on the fifth day after surgery without postoperative complications.
Fig. 4.

Intraoperative findings. The gallbladder is attached to the liver at the left side of the round ligament

Conclusions

LSG is defined as a rare right-sided round ligament associated with intrahepatic biliary and portal system variations [1]. The incidence of LSG without situs inversus is reportedly 0.2% [6]. Several reports showed that intrahepatic portal vein and biliary system anomalies are rather common in cases of LSG [1, 7]. Attention should be paid to the intrahepatic portal and biliary system as well as cystic duct variations. In our case, the portal vein formed the right umbilical portion, to which the round ligament was attached.

From the hypothesis of LSG occurrence, two types of cystic duct anomalies have been reported [1]: (1) a gallbladder that migrated to the left lobe, that is, a normal cystic duct location, and (2) a gallbladder that formed directly from the left hepatic duct and the cystic duct joining the common bile duct of the left hepatic duct from the left side [1]. In our case, the cystic duct was recognized at the right side of the common bile duct, corresponding to the gallbladder migration type.

The preoperative diagnostic difficulty is due to its rarity and similar radiological findings to those of gallbladder torsion. Gallbladder torsion is highly associated with the floating gallbladder. Gross classified gallbladder torsion into two types: type I is associated with local attachment between the gallbladder and the liver, while type II is complete floating gallbladder [1]. Type I gallbladder torsion can present radiological findings such as central dislocation of the gallbladder fundus and expansion and tapering of the cystic duct on the right side of the common bile duct, which are similar to the radiological findings of our case.

Our previous report demonstrated that the preoperative detection of LSG is important for avoiding biliary injury in cases of hepatectomy [8]. In our case, the anomaly of the intrahepatic portal system was detected preoperatively, but the diagnosis of LSG was made according to intraoperative findings. In cases of acute cholecystitis, it is important to pay attention to the formation of a right umbilical portion as well as the preoperative location of a round ligament to distinguish between LSG and gallbladder torsion.

Patients with acute cholecystitis are generally good candidates for LC as recommended by the 2018 Tokyo guidelines under strict conditions [2]. Several reports have shown the efficacy of early versus delayed cholecystectomy due to the shorter hospital stays, fewer postoperative complications, and higher LC completion rate [2, 3]. Avoiding biliary duct injury (BDI) is a cause for concern when performing cholecystectomy, and it is important to detect an ectopic biliary system in the emergent setting. Clearly detecting Calot’s triangle is essential for avoiding BDI. Regarding the LSG hypothesis, the cystic duct frequently branches from the left hepatic duct, an anomaly that leads to BDI.

Nastos et al. reviewed 18 previous surgical cases of LSG and reported that it can be safely managed by devising of the port arrangement and the use of intraoperative cholangiography [9]. In the literature, the use of an additional retracting port [10] and the fundus first approach [11] have been described. In our case, the distance between the round ligament and the epigastric port was so short that they interfered with each other. It is important to create an adequate workspace between the round ligament and the gallbladder for safe processing of Calot’s triangle. Some reports have stated that manipulation of the falciform ligament is useful [10]. Lifting the falciform and the round ligaments to the body wall using a surgical suture may be an easy approach and enable surgery with a clearer view. In addition, positioning the port more caudally or using an additional port to attract the round ligament would be useful for avoiding obstruction by the round ligament. Here, we performed a conventional American-style LC and attracted the round ligament using the epigastric port. Adopting additional ports or using energy devices may be helpful for ensuring surgical safety and shortening operative time.

In conclusion, LSG is associated with an intrahepatic biliary system anomaly. Here LC was successfully performed. Radiological findings are similar to gallbladder torsion, but identification of the round ligament is useful for the diagnosis of LSG. When LSG is diagnosed, the optimal port site should be determined to ensure safe cholecystectomy.

Notes

Acknowledgements

The authors thank all individuals who contributed to this work.

Funding

The authors declare that this work was not supported by any grants or funding

Availability of data and materials

The data for this case report will not be shared to ensure patient confidentiality.

Authors’ contributions

RH and TA wrote the manuscript. The remaining authors contributed to the data collection, analysis, and interpretation. RH, TA, HA, MN, and TN performed the surgery. All authors conceived of the study, participated in its design and coordination, and helped draft the manuscript. All authors read and approved the final manuscript for publication.

Ethics approval and consent to participate

Not applicable

Consent for publication

This patient consented to the reporting of this case in a scientific publication.

Competing interests

The authors declare that they have no competing interests.

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Copyright information

© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Ryosuke Hirohata
    • 1
  • Tomoyuki Abe
    • 1
    Email author
  • Hironobu Amano
    • 1
    • 2
  • Tsuyoshi Kobayashi
    • 2
  • Masahiro Nakahara
    • 1
  • Hideki Ohdan
    • 2
  • Toshio Noriyuki
    • 1
    • 2
  1. 1.Department of SurgeryOnomichi General HospitalHiroshimaJapan
  2. 2.Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health SciencesHiroshima UniversityHiroshimaJapan

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