| A large pseudocyst that ruptures, becomes infected, or hemorrhages requires drainage of the cyst cavity. |
| The cyst wall disintegrates in the small intestine, releasing motile trophozoites. |
| Cysts may feel firm as the fluid may be tightly contained within the cyst capsule. |
| The archeopyle is created by loss of an operculum that is distinguished from the adjacent cyst surface by a distinct groove. |
| In some areas the mucosa lining the cyst had a slightly villiform appearance, whereas elsewhere it was flattened and simplified. |
| He underwent surgery, which revealed a small cyst filled with yellow mucoid material and some fatty tissue prolapsing into the cyst. |
