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
| Complication | Mechanism | Key Features |
|---|---|---|
| Acute Cholecystitis | Cystic duct obstruction → inflammation | RUQ pain >6 hrs + fever + Murphy's sign + leukocytosis; US: wall thickening, pericholecystic fluid, sonographic Murphy's |
| Choledocholithiasis | Stone migrates to CBD | Obstructive jaundice, clay stools, dark urine, cholangitis risk; ↑ ALP, GGT, bilirubin; US: dilated CBD (>6–7 mm) |
| Acute Cholangitis | CBD obstruction + infection | Charcot's triad: RUQ pain, fever, jaundice; Reynolds' pentad: + hypotension, AMS |
| Gallstone Pancreatitis | Stone impacts ampulla of Vater | Epigastric pain radiating to back; ↑ lipase >3× ULN; US: gallstones + pancreatic edema |
| Gallstone Ileus | Fistula (cholecystoduodenal) → large stone obstructs ileum | SBO in elderly; Rigler's triad on CT: pneumobilia, ectopic stone, SBO |
| Mirizzi Syndrome | Stone impacted in cystic duct compresses CHD | Jaundice + cholecystitis; ERCP/MRCP for diagnosis |
| Porcelain Gallbladder | Wall calcification | ↑ Cancer risk (10–25%); prophylactic cholecystectomy |
