Gall bladder.2. Chronic calcular cholecystitis Flashcards
(123 cards)
Chronic Calcular Cholecystitis
- Alternative names
- ETIOLOGY
- TYPES AND PATHOLOGY
- CLINICAL PICTURE
- DIFFERENTIAL DIAGNOSIS
- INVESTIGATIONS
- TREATMENT
Alternative names for Chronic Calcular Cholecystitis
- GALL BLADDER STONES
2. CHOLELITHIASIS
ETIOLOGY of Chronic Calcular Cholecystitis
A- Cholesterol & Mixed Stones :
B- Pigment Stones :
Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
- Disturbed bile salts / cholesterol ratio : (Lithogenic theory)
- Bile stasis
- Infection (in mixed stones only) :
Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
- The normal ratio
- The disturbed ratio
- The Etiology of disturbance
The normal ratio in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
25:1
The disturbed ratio in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
13:1 or less )> the cholesterol precipitates (lithogenic bile).
lithogenic bile in The disturbed ratio in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
bile containing disturbed bile salts : cholesterol ratio )> 13:1 or less )> the cholesterol precipitates
The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
a) Decrease in bile salt pool
b) Increased cholesterol in bile
Pathogenesis of Decrease in bile salt pool in The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
- Chronic liver disease.
- Crohn’s disease.
- Surgical removal of the terminal ileum
Chronic liver disease in Pathogenesis of Decrease in bile salt pool in The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
causes Decrease hepatic bile salts synthesis
Crohn’s disease in Pathogenesis of Decrease in bile salt pool in The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
causes inflammation of the terminal ileum which is the site of entero-hepatic circulation
Surgical removal of the terminal ileum in Pathogenesis of Decrease in bile salt pool in The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
done in Right hemi colectomy
Pathogenesis of Increased cholesterol in bile in The Etiology of disturbance in Disturbed bile salts / cholesterol ratio : (Lithogenic theory) in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
- D.M, obesity or increase dietary fat intake.
2. Estrogen increases cholesterol level in bile.
Pathogenesis of Bile stasis in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
Gall bladder contractility is reduced by
a) Oral contraceptive pills.
b) Repealed pregnancy.
c) Patients on long-term parenteral nutrition. (Dec release of cholecystokinin)
d) After truncal vagotomy.
e) D.M & obesity ( neuropathy)
Pathogenesis of infection in Etiology of Cholesterol & Mixed Stones of CCC in ETIOLOGY of Chronic Calcular Cholecystitis
Bacteria & epithelial debris provides the nidus for stone formation
Monaghan aphorism
The stone is the tomb of organism
Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
1) Hemolytic anemia:(especially spherocytosis)
2) Hepatic cirrhosis :
3) Infection by E. coli
4) Parasitic infestation
Pathogenesis of Hemolytic anemia in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
Excessive destruction of RBCs which results in increase of bile pigments (black pigment stones).
Pathogenesis of Hepatic cirrhosis in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
- decrease ability of the liver to conjugate bilirubin
- decrease hepatic bile salt synthesis
- Cirrhosis increases all types of gallstones, but black pigment stones are the commonest
The commonest stones in Pathogenesis of Hepatic cirrhosis in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
black pigment stones
Pathogenesis of Infection by E. coli in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
E. coli secretes p- glucoronidase enzyme
p- glucoronidase enzyme in Pathogenesis of Infection by E. coli in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
- secreted by E.coli
- deconjugates bilirubin diglucoronide to insoluble bilirubin which combines with calcium & ppts as calcium bilirubinate (brown pigment stones).
Pathogenesis of Parasitic infestation in Etiology of Pigment Stones in ETIOLOGY of Chronic Calcular Cholecystitis
Ascariasis lumbricoides & Clonorchis sinensis Reach the CBD and predispose infection by E coli forming brown pigment stones.