Acute torsion of the gallbladder: a case report
© Caliskan et al; licensee Cases Network Ltd. licensee BioMed Central Ltd. 2009
Received: 29 December 2008
Accepted: 4 February 2009
Published: 29 April 2009
Torsion of gallbladder is an uncommon cause of acute abdomen. Volvulus occurs along the long axis of the gallbladder mesentery, and according to the degree of rotation symptoms, and signs may vary.
A 79-year-old woman presented with a one-day history of acute onset of right upper abdominal pain. The patient underwent laparotomy with a preoperative diagnosis of acalculous cholecystitis with possible gangrene. At laparotomy, the gallbladder was distended, and multiple necrotic areas were observed. It was rotated more than 180 degrees clockwise around the mesentery, and cholecystectomy was performed.
Cholecystectomy is the treatment of gallbladder torsion. Clinical signs and radiographic studies may be helpful to diagnose gallbladder torsion. Early diagnosis and surgical treatment lower the mortality of disease.
Torsion of the gallbladder is an uncomon condition, which can cause acute surgical abdomen. It was first described by Wendell in 1898. Since then approximately 300 cases have been reported in the literature . Gallbladder volvulus may occur in any age group, however the incidence is higher in elderly women. Clinical symptoms depend on the severity of the volvulus so that, preoperative diagnosis is always difficult . We report a case of necrotizing torsion of gallbladder and discuss the diagnostic, therapeutic implications, and outcomes of this entity in the context of the available literature.
A 79-year-old woman presented with a one-day history of acute onset of right upper abdominal pain. Nausea, and vomiting were also present. The vital signs were normal. Examination revealed a very tender mass in the right upper quadrant of abdomen. Laboratory investigations, including complete blood cell count, and liver function tests were within normal limits.
Abdominal ultrasound (US) examination showed a distended gallbladder, thickened gallbladder wall and fluid collection around the gallbladder. Ultrasonographic Murphy's sign was positive.
Acute torsion of the gallbladder is an uncommon condition, characterized by rotation of the gallbladder on its mesentery along the axis of the cystic duct and cystic artery. It is more frequent in elderly patients, The female-to-male ratio is reported to be 3:1 in adults and 1:4 in the pediatric age group [2, 3].
The etiology of gallbladder torsion is not well known however, the long gallbladder mesentery, and minimal attachment of the gallbladder to the liver facilitate rotation. The loss of visceral fat, and elasticity, liver atrophy, spinal deformities and weigth loss are predisposing factors that accelerate volvulus of gallbladder [3, 4]. In this setting, arteriosclerotic cystic artery and tortuous cystic duct may further speed up the process by acting as a rigid fulcrum for torsion .
Two types of gallbladder torsion have been described: incomplete (rotation less than 180 degrees), and complete (rotation more than 180 degrees) . Presenting symptoms of gallbladder torsion depend on type of volvulus. Complete torsion presents sudden onset severe right upper quadrant pain, nausea and vomiting, with a tender palpable mass as in our patient. Incomplete torsion presents with recurrent upper abdominal pain with or without vomiting [2, 4, 6]. In this group, cholelithiasis has been reported in only one quarter of the patients .
Preoperative diagnosis of gallbladder torsion is difficult. Clinical presentations are common to other intraabdominal conditions (acute cholecystitis, acute appendicitis). The diagnosis is usually confirmed at laparotomy. The reported findings of gallbladder torsion at US include a floating gallbladder, and thickened gallbladder wall . However, in our case US features reported as an acalculous cholecystitis. The CT features suggesting gallbladder torsion such as horizontal misplaced gallbladder, and fluid collection between the gallbladder and liver bed indicating a 'floating gallbladder' were present in our case. The CT findings of our case were suggested a gangrenous cholecystitis or gallbladder torsion.
Cholecystectomy is the treatment of gallbladder torsion. Both open and laparoscopic techniques are available for the cholecystectomy. Laparoscopic detorsion and cholecystectomy offers advantages of the minimally invasive surgery . Clinical signs and radiographic studies may be helpful to diagnose of gallbladder torsion. Early diagnosis and surgical treatment lower the mortality of disease. Delayed diagnosis and treatment may give rise to complications.
Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
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