Laparoscopic fenestration of multiple giant biliary mucinous cystadenomas of the liver

Figure 1 CT scan demonstrating multiple unilocular liver cysts. The cysts are well delineated, smooth with uniform content, consistent with simple liver cysts.

Figure 2 Laparoscopic view of the cysts and gallbladder.

Figure 3 The cysts are lined with cuboidal to columnar non ciliated mucin secreting cells. A moderate cellular stroma and an outer collagenous layer comprise the rest of the cyst wall (HE, × 40).

Figure 4 The wall of the largest cyst showing papillary projections of the lining epithelium (arrowhead), presence of microscopic cysts with the same epithelial lining (arrows), calcifications and hyaline degeneration of the stroma (HE, × 40).