Autopsy of the body of a woman, who suffered from purulent cholecystitis and died of sepsis, revealed 100mL of turbid green-yellow fluid inthe gallbladder. The gallbladder walls are flaccid, thinned out,dull,and pleothoric. Histologically there are hyperemia and diffuse neutrophilic infiltration of the gallbladder wall. What type of inflammation is observed in the patient’s gallbladder?