Also known as cholecystopathia chronica calcarea, porcelain gall bladder is classically seen in the 60s in a female (M:F = 1:5).

Often an incidental detection, the importance lies in early removal of gall bladder as 33% of porcelain gall bladder tends to turn malignant.

Supersaturated bile, intramural hemorrhage and/or dystrophic calcification are the described mechanisms.

Loss of wall echo shadow sign (double arc shadow) is typical for porcelain GB on ultrasound.