Gallstone disease: colic, cholecystitis, cholangitis

Fever plus deranged LFTs in a patient with gallstones is cholangitis until proven otherwise. Treat it early and get the duct drained.

In the emergency department

A 45-year-old woman has had constant right upper quadrant pain for 18 hours with fever 38.4 °C. Murphy's sign is positive. Bilirubin normal.

A 68-year-old man has jaundice, rigors and right upper quadrant pain. Temperature 39.2 °C, BP 94/58, bilirubin 4.8 mg/dL (82 µmol/L).

A 38-year-old woman had 2 hours of colicky right upper quadrant pain after a fatty meal, now settled. Bloods normal.

Which one is biliary colic, which is cholecystitis, and which is the emergency?

Do now: in this order
  1. BloodsFBC, CRP, LFT, amylase or lipase, U&E, clotting, cultures if feverish.
  2. UltrasoundGallstones, wall thickening, fluid, duct dilatation.
  3. Biliary colicAnalgesia, home, elective laparoscopic cholecystectomy.
  4. Acute cholecystitisAdmit, IV antibiotics, analgesia. Early cholecystectomy (within 1 week, ideally 72 hours).
  5. CholangitisFever, jaundice, pain (Charcot's triad). Sepsis bundle, antibiotics, ERCP within 24–48 hours (urgent if shocked).
  6. Gallstone pancreatitisTreat pancreatitis. ERCP if cholangitis or persistent obstruction.
  7. Common bile duct stonesMRCP or EUS if suspected, ERCP to clear.
Call your senior if
  • Cholangitis with shock or confusion
  • Jaundice with fever
  • Gallstone pancreatitis
  • Gangrenous or perforated gallbladder
  • Elderly or diabetic with cholecystitis
Don’t miss
  • Cholangitis
  • Pancreatitis
  • Gallbladder perforation or empyema
  • Acalculous cholecystitis in ICU patients
  • Inferior MI
  • Peptic ulcer
  • Right lower lobe pneumonia
  • Liver abscess
Key numbers
Biliary colicPain under about 6 hours, no fever, normal bloods
Acute cholecystitisConstant pain over 6 hours, fever, Murphy's sign, raised WBC
Charcot's triadFever, jaundice, right upper quadrant pain
Reynolds' pentadCharcot's plus confusion and shock
CBD dilatedOver about 6 mm (more in the elderly and after cholecystectomy)
Early cholecystectomyWithin 1 week of symptoms, ideally 72 hours

Check every dose against a current drug reference and your hospital protocol.

On this page

Spectrum of gallstone disease

ConditionPainFeverJaundiceBloods
Biliary colicColicky, under 6 hoursNoNoNormal
Acute cholecystitisConstant, over 6 hours, Murphy's signYesMild or noHigh WBC, CRP
CholedocholithiasisColickyNoYesObstructive LFTs
CholangitisConstantHigh, rigorsYesHigh WBC, obstructive LFTs, often shocked
Gallstone pancreatitisEpigastric to backPossiblePossibleLipase or amylase 3 times normal

Which one is it?

Right upper quadrant pain
Features
Short pain, settled, normal bloods

Biliary colic: home, elective surgery

Constant pain, fever, Murphy's positive, normal bilirubin

Acute cholecystitis: admit, antibiotics, early surgery

Fever, jaundice, pain, low BP or confusion

Cholangitis: sepsis treatment, urgent ERCP

Epigastric pain to the back, high lipase

Pancreatitis

Investigations

TestWhy
UltrasoundStones, wall thickening, pericholecystic fluid, duct dilatation
LFTObstructive pattern (bilirubin, ALP, GGT)
Lipase or amylasePancreatitis
FBC, CRPInfection
Blood culturesFever
MRCPSuspected duct stones
CTComplications (perforation, pancreatitis, abscess) or unclear diagnosis
ECGInferior MI mimic

Management

Acute cholecystitis
  1. AdmitAnalgesia, IV fluids, antiemetic.
  2. AntibioticsIV, per local guidance.
  3. Early cholecystectomyWithin 1 week, ideally 72 hours, in fit patients.
  4. Not fit for surgery or not improvingPercutaneous cholecystostomy.
Cholangitis
  1. Sepsis bundleCultures, antibiotics within 1 hour, fluids, lactate.
  2. Biliary drainageERCP: urgent (within 24 hours or sooner) if shocked, within 48–72 hours if responding.
  3. Then cholecystectomyOnce recovered.

Treatment

RxGallstone disease (adult)
Diclofenac75 mg IM or 50 mg orally every 8 hoursBiliary colic; avoid in kidney injury, ulcers, late pregnancy Dose source: Drugs.com: Diclofenac dosage
Morphine2.5–5 mg IV titratedSevere pain Dose source: Drugs.com: Morphine dosage
Ceftriaxone plus metronidazole2 g IV daily plus 500 mg IV every 8 hoursCholecystitis or cholangitis, per local guidance Dose source: Drugs.com: Ceftriaxone dosage
Piperacillin-tazobactam4.5 g IV every 8 hoursSevere cholangitis or hospital-acquired Dose source: Drugs.com: Piperacillin/tazobactam dosage

See pancreatitis and sepsis.

Special situations

  • Pregnancy: ultrasound; surgery is safest in the second trimester.
  • Elderly and diabetics: higher risk of gangrene and perforation, fewer signs.
  • ICU patients: acalculous cholecystitis without stones.
  • Mirizzi syndrome: a stone in the gallbladder neck compresses the common hepatic duct, causing jaundice.

Common mistakes

Avoid these
  • Missing cholangitis in a jaundiced, feverish patient.
  • Discharging cholecystitis as colic.
  • Delaying ERCP in shocked cholangitis.
  • Forgetting the ECG.
  • Delaying surgery for weeks "to let it cool down" in fit patients.
  • Missing duct stones in a patient with abnormal LFTs.

Frequently asked questions

What is the difference between biliary colic and cholecystitis?

Biliary colic is short pain without fever and with normal bloods. Cholecystitis is constant pain over 6 hours with fever, Murphy's sign and raised inflammatory markers.

What is Charcot's triad?

Fever, jaundice and right upper quadrant pain, the classic features of cholangitis.

When should cholecystectomy be done after acute cholecystitis?

Early, within 1 week of symptoms and ideally within 72 hours, in fit patients.

What is the treatment for cholangitis?

Antibiotics, fluids and biliary drainage by ERCP, urgently if the patient is shocked.

Test yourself

Exam-style questions on this guide, from our two question banks. Choose an answer to see why each option is right or wrong.

NRE-1 PrepClinical MCQs, PMDC NRE style

1. A woman with gallstones has fever, rigors, jaundice and right upper quadrant pain. What is the diagnosis?

2. A 45-year-old has acute cholecystitis confirmed on ultrasound. When should cholecystectomy ideally be done?

3. Why should every gallbladder removed in Pakistan be sent for histology?

4. A 70-year-old has fever with rigors, jaundice and RUQ pain. BP is 85/50 and he is confused. Ultrasound shows a dilated common bile duct with stones. After resuscitation and antibiotics, what is needed urgently?

5. Three days after laparoscopic cholecystectomy, a patient has abdominal pain, fever and mild jaundice. Ultrasound shows a subhepatic collection. What is the likely cause and treatment?

FCPS-1 PrepBasic science MCQs for CPSP FCPS Part 1

6. During laparoscopic cholecystectomy, the surgeon dissects Calot's triangle to find which structure?

7. A healthy young man becomes mildly jaundiced when fasting during Ramadan or when unwell. Unconjugated bilirubin is slightly raised; liver enzymes and blood count are normal. What is the diagnosis?

References and dose sources

  1. Tokyo Guidelines 2018: diagnostic criteria and severity grading of acute cholangitis
  2. Tokyo Guidelines 2018: acute cholecystitis
  3. NICE CG188 — gallstone disease
  4. Tokyo Guidelines 2018 — acute cholangitis and cholecystitis
  5. Diclofenac dosing: Drugs.com: Diclofenac dosage (see also our diclofenac dose page)
  6. Paracetamol dosing: Drugs.com: Acetaminophen (paracetamol) dosage (see also our paracetamol dose page)
  7. Morphine dosing: Drugs.com: Morphine dosage (see also our morphine dose page)
  8. Ceftriaxone dosing: Drugs.com: Ceftriaxone dosage (see also our ceftriaxone dose page)
  9. Piperacillin-tazobactam dosing: Drugs.com: Piperacillin/tazobactam dosage (see also our piperacillin-tazobactam dose page)

International guidance is linked where it reflects good practice. Where your hospital’s protocol differs, follow your hospital.