Haemorrhagic cholecystitis

Dr Vikas Shah et al.

Haemorrhagic cholecystitis refers to an inflammatory process of the gallbladder, complicated by haemorrhage into the lumen. 

The presenting features may mimic non-haemorrhagic acute cholecystitis, with right upper quadrant pain being a dominant feature. If the blood is passed through the biliary tree into the gut, haematemesis or passage of melaena may also occur, or blood oozing from the ampulla of Vater, known as haemobilia, may be seen at endoscopy1. Blockage of the bile ducts by blood clots may cause biliary obstruction, with the presentation then being of painful jaundice and mimicking the passage of gallstones. There may be a reduction in the red blood cell count. A combination of the presenting features of upper abdominal pain, haematemesis and jaundice is known as Quinke's triad, and is a sign of a cystic artery pseudoaneurysm2.

Known underlying risk factors include a bleeding diathesis or treatment with anticoagulants, and trauma. When a complication of acute cholecystitis, the inflammatory process causes mucosal necrosis with subsequent bleeding from small vessels in the wall. Cystic artery pseudoaneurysms may also be caused by acute cholecystitis, with rupture leading to haemobilia. However, in many reported cases of haemorrhagic cholecystitis, there is no clear underlying cause.

Ultrasound is the preferred diagnostic modality in the initial investigation of right upper quadrant pain. If the presentation is with gut bleeding, a CT may be performed following endoscopy to seek a source of bleeding.

Ultrasound

The gallbladder is distended with mixed echogenicity non-shadowing material filling the lumen. There may be layering or a swirling appearance depending on how recent the onset was. Signs of acute cholecystitis, namely wall thickening and free pericholecystic fluid may also be present. Stones may be obscured by the luminal blood.

CT

In addition to signs of acute cholecystitis such as wall thickening and free pericholecystic fluid, high density material is seen within the lumen. Layering or swirling may be seen, depending on the time lapsed between the onset and imaging3. There may be free fluid elsewhere within the abdomen and pelvis, either simple free fluid or of high density, indicating a possible perforation of the gallbladder.

In the event of ongoing bleeding, emergent treatment by surgery or embolisation of a cystic artery pseudoaneurysm should be considered. A more conservative approach may also be followed with an elective cholecystectomy as an option following recovery from the acute episode.

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Article information

rID: 50160
Section: Pathology
Tags: cases, stub
Synonyms or Alternate Spellings:

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