English: Porcelain gallbladder with probable metastatic carcinoma of the gallbladder: Plain abdominal radiograph of an 84-year-old woman who presented with a three-month history of diffuse abdominal pain and weight loss of 40 pounds. On physical examination, she had a hard, nontender, baseball-sized mass in the right upper abdominal quadrant. A computed tomographic scan showed that the calcification seen on the plain abdominal radiograph represented the wall of the gallbladder (image below). The scan also showed ascites, multiple lesions in the liver, and nodularity of the peritoneum and small bowel mesentery. These findings suggested metastatic carcinoma of the gallbladder, but the patient refused further investigation.