Abstract
Objective:An 87-year-old attended the emergency department with sharp upper abdominal pain, radiating to back with a pain score of 10/10. On examination, severe epigastric tenderness was noted.Past surgical history: bilateral salphingo-oopherectomy. Repair for paraumblical hernia and right total hip replacement. No history of cholecystectomy. Inflammatory markers were raised.Cholecystitis/gall bladder perforation was suspected and contrast CT was performed.Methods:CT abdomen and pelvis – in comparison to the previous CT scan which was done in 2018, where gall bladder was in the correct anatomical location, the gall bladder was not seen in the gall bladder fossa in the current study.However, a gall bladder like suspicious structure was noticed within the upper abdomen to the left of midline anterior to the gastric pylorus with significant inflammatory changes.Therefore, considering the clinical picture and CT findings, it was suggestive of acute cholecystitis with torsion of gall bladder.Results:Patient was started on i.v. antibiotics and laparoscopic assessment was carried out on the following day.Intraoperatively, the surgeons were unable to locate the gall bladder in its normal anatomical position, but incidentally found a mass in the left upper abdomen which appeared gangrenous. This was removed and sent for histopathology.Histology report confirmed that the specimen was gall bladder with features suggestive of pre-existing chronic cholecystitis, with recent venous infarction.Conclusion:Torsion of gall bladder is a very rare entity and if left untreated could lead to fatal sequelae of gangrene and perforation resulting in biliary peritonitis. There is evidence which suggest that torsion of gall bladder is more common in elderly females due to loss of visceral fat but the pre-operative diagnosis using imaging modalities has always been challenging. But in this particular case, the radiologist was able to make the precise diagnosis pre-operatively using the cross-sectional study of an advanced imaging modality like the CT scan with contrast which also helped the surgeons in making the decision for immediate surgery rather than planning for routine conservative management for acute cholecystitis.The importance of cross-sectional study with intravenous contrast in diagnosing unusual presentation of gall bladder related and potentially life-threatening abdominal pathology has been highlighted in this case study. It is also evident that how imaging modalities play a significant role in altering acute management plan.
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