Development of primary gangrenous cholecystitis on elderly patients is based on:
A. Rapid disturbance of the blood supply in cystic artery due to atherosclerosis
B. Exacerbation of the chronic calculose cholecystitis and acute blockage of ductus cysticus by stone
C. Acute blockage of ductus cysticus by sludge
D. Acute blockage of distal hepatico-choledochus
E. Acute blockage of right hepatic branch of common bile duct
SurgicalA. Rapid disturbance of the blood supply in cystic artery due to atherosclerosis