Cholelithiasis (Gallstones): Symptoms, Complications, and Management

Cholelithiasis is the presence of gallstones (calculi) in the gallbladder. Most are asymptomatic ("silent stones"); 10–20% develop symptoms or complications over 10–20 years.

Typical Symptomatic Presentation (Biliary Colic)

  • Pain: RUQ or epigastric, severe, steady (not colicky), 30 min–6 hrs; often postprandial (fatty meal); may radiate to right scapula, shoulder, or back.
  • Associated: Nausea, vomiting, diaphoresis.
  • Relief: Spontaneous as stone falls back; no fever, no peritoneal signs.

Complications & Their Presentations

Diagnosis

  • Ultrasound (1st line): Sensitivity 95% for GB stones; assesses wall, fluid, CBD diameter.
  • MRCP / ERCP: For suspected CBD stones.
  • HIDA scan: If US equivocal for acute cholecystitis (GBEF <35–40%).
  • Labs: CBC, LFTs, lipase, amylase, coagulation.

Management

  • Asymptomatic: Observation (no prophylactic cholecystectomy except porcelain GB, large stones >3 cm, transplant candidates, sickle cell).
  • Symptomatic (biliary colic): Laparoscopic cholecystectomy (gold standard, <1% bile duct injury).
  • Acute cholecystitis: Early laparoscopic cholecystectomy (within 72 hrs) or percutaneous cholecystostomy (high surgical risk).
  • Choledocholithiasis: ERCP ± sphincterotomy → cholecystectomy (same admission or interval).
  • Cholangitis: Antibiotics + biliary drainage (ERCP) within 24 hrs.
  • Gallstone pancreatitis: Supportive → cholecystectomy during same admission (mild) or after necrosis resolves (severe).

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ComplicationMechanismKey Features
Acute CholecystitisCystic duct obstruction → inflammationRUQ pain >6 hrs + fever + Murphy's sign + leukocytosis; US: wall thickening, pericholecystic fluid, sonographic Murphy's
CholedocholithiasisStone migrates to CBDObstructive jaundice, clay stools, dark urine, cholangitis risk; ↑ ALP, GGT, bilirubin; US: dilated CBD (>6–7 mm)
Acute CholangitisCBD obstruction + infectionCharcot's triad: RUQ pain, fever, jaundice; Reynolds' pentad: + hypotension, AMS
Gallstone PancreatitisStone impacts ampulla of VaterEpigastric pain radiating to back; ↑ lipase >3× ULN; US: gallstones + pancreatic edema
Gallstone IleusFistula (cholecystoduodenal) → large stone obstructs ileumSBO in elderly; Rigler's triad on CT: pneumobilia, ectopic stone, SBO
Mirizzi SyndromeStone impacted in cystic duct compresses CHDJaundice + cholecystitis; ERCP/MRCP for diagnosis
Porcelain GallbladderWall calcification↑ Cancer risk (10–25%); prophylactic cholecystectomy