Figure 2. Case 4: 47-year-old male with diffuse abdominal pain. (a) Transverse renal ultrasound of the right kidney. Cyst-like lesion with mobile hyperechogenic material with a weak posterior acoustic shadow. (b)Supine abdominal radiograph. Multiple small round calcifications (milk of calcium) in the right upper abdomen. (c) Right lateral decubitus abdominal radiograph. Linear calcifications in the right abdomen.