Chronic Cholecystitis: Long‑Term Gallbladder Inflammation
- What is chronic cholecystitis?
- Causes – recurrent gallstones, chronic irritation
- Symptoms – dull pain, bloating, fat intolerance
- Diagnosis – ultrasound, HIDA scan, gallbladder wall thickening
- Treatment – cholecystectomy is definitive
- Complications – porcelain gallbladder, cancer risk
- Acute vs chronic cholecystitis – differences
- Interactive FAQ – 9 common questions
What is chronic cholecystitis?
Chronic cholecystitis is long‑standing, repeated inflammation of the gallbladder, usually resulting from recurrent episodes of acute cholecystitis or chronic irritation by gallstones. Unlike acute cholecystitis, which presents with sudden severe pain and fever, chronic cholecystitis causes persistent, milder symptoms that may come and go over months or years. The gallbladder wall becomes thickened, scarred, and non‑functioning. Most patients with chronic cholecystitis have gallstones, but acalculous chronic cholecystitis (without stones) also occurs.
Causes – recurrent gallstones, chronic irritation
- Calculous chronic cholecystitis (90%): Repeated episodes of mild obstruction by gallstones cause ongoing inflammation, leading to fibrosis and thickening of the gallbladder wall.
- Acalculous chronic cholecystitis (10%): Occurs without gallstones. Causes include biliary dyskinesia (poor gallbladder emptying), cystic duct strictures, or recurrent microcrystal deposition.
- Risk factors: Same as gallstones – female sex, obesity, age >40, multiparity, family history.
Symptoms – dull pain, bloating, fat intolerance
Symptoms of chronic cholecystitis are often vague and may be mistaken for indigestion or IBS:
- Dull, aching right upper quadrant or epigastric pain: May occur after fatty meals but is less severe than acute biliary colic.
- Chronic bloating, belching, and flatulence.
- Fat intolerance: Discomfort after eating fried or fatty foods.
- Nausea and occasional vomiting.
- No fever or jaundice (unless acute exacerbation occurs).
Diagnosis – ultrasound, HIDA scan, gallbladder wall thickening
Diagnosis is often incidental or after ruling out other causes of chronic abdominal pain:
- Abdominal ultrasound: Key findings:
- Gallstones (present in most cases).
- Gallbladder wall thickening (>4‑5mm) – indicates chronic inflammation.
- Contracted or shrunken gallbladder.
- Intramural diverticula (Rokitansky‑Aschoff sinuses) – pathognomonic for chronic cholecystitis.
- HIDA scan (hepatobiliary scintigraphy): Delayed or absent gallbladder filling, poor ejection fraction (<35‑40%) suggests chronic cholecystitis or biliary dyskinesia.
- CT scan: May show wall thickening, pericholecystic fat stranding, or calcification (porcelain gallbladder).
- Blood tests: Usually normal. Mildly elevated alkaline phosphatase or bilirubin may occur with associated bile duct obstruction.
Treatment – cholecystectomy is definitive
Symptomatic chronic cholecystitis is treated with laparoscopic cholecystectomy. Unlike acute cholecystitis, surgery is elective, not emergent.
- Elective laparoscopic cholecystectomy: Gold standard. Most patients can go home the same day or after overnight stay. Recovery is faster than in acute cholecystitis.
- Asymptomatic chronic cholecystitis (incidental finding): Observation is reasonable. However, if the gallbladder wall is very thickened (>8‑10mm) or there is porcelain gallbladder, prophylactic cholecystectomy is considered due to cancer risk.
- Acalculous chronic cholecystitis: HIDA scan with low ejection fraction (<35%) supports cholecystectomy. Many patients have significant symptom relief after surgery.
Complications – porcelain gallbladder, cancer risk
Long‑standing chronic cholecystitis can lead to:
- Porcelain gallbladder: Calcification of the gallbladder wall, visible on X‑ray or CT. Associated with a 5‑15% risk of gallbladder cancer. Prophylactic cholecystectomy is recommended.
- Gallbladder cancer: Chronic inflammation is a risk factor, especially with large stones (>3cm) and porcelain gallbladder. Routine cholecystectomy for symptomatic chronic cholecystitis removes this risk.
- Gallbladder hydrops (mucocele): Distended gallbladder filled with mucus due to chronic obstruction.
Acute vs chronic cholecystitis – differences
| Feature | Acute cholecystitis | Chronic cholecystitis |
|---|---|---|
| Onset | Sudden, severe | Gradual, intermittent |
| Pain | Constant, severe, >6 hours | Dull, aching, after meals |
| Fever | Common (often >38°C) | Absent |
| WBC count | Elevated | Normal |
| Ultrasound findings | Wall thickening >4mm, pericholecystic fluid | Wall thickening, shrunken gallbladder, Rokitansky‑Aschoff sinuses |
| Surgery timing | Emergency/urgent (within 72h) | Elective |
Interactive FAQ – Chronic cholecystitis
No – the gallbladder wall is permanently scarred and non‑functioning. Medications (UDCA) may reduce stone formation but do not reverse chronic inflammation. Cholecystectomy is the only cure.
The absolute risk is low (0.5‑1% lifetime), but increases with large stones (>3cm), porcelain gallbladder (5‑15%), and long disease duration. Cholecystectomy eliminates this risk.
Indirectly – if a stone migrates from the gallbladder into the common bile duct, it can cause pancreatitis. The chronic inflammation itself does not directly cause pancreatitis.
Biliary dyskinesia refers to poor gallbladder motility without stones or inflammation. Chronic cholecystitis has structural changes (wall thickening, fibrosis). Both may cause similar symptoms and are treated with cholecystectomy.
Observation is acceptable for asymptomatic patients with mild wall thickening. However, if the wall is very thickened (>8‑10mm) or there is porcelain gallbladder, prophylactic cholecystectomy is recommended.
A HIDA scan tracks bile flow. In chronic cholecystitis, gallbladder filling may be delayed or absent. Low ejection fraction (<35%) supports the diagnosis of biliary dyskinesia or chronic cholecystitis.
A low‑fat diet may reduce symptoms but does not reverse the disease. Once the gallbladder is scarred, cholecystectomy is the only definitive treatment.
Outpouchings of the gallbladder mucosa through the muscle layer – a hallmark of chronic cholecystitis seen on pathology and sometimes on imaging.
Often, yes – the thickened, shrunken gallbladder can make dissection more difficult. However, elective surgery is still safe in experienced hands.
Disclaimer: This information is for educational purposes. If you have chronic right upper quadrant pain or a thickened gallbladder on ultrasound, consult a gastroenterologist or surgeon at Vivekananda Hospital.