Regular, thin-walled cyst and pericystic
contrast uptake was determined.
The left hepatic duct near the hilar plate was included in the pericystic
wall near segment 3.
The patient was initially treated only with prednisolone, and anti-helminthic treatment was deferred fearing pericystic inflammation and aggravation of the conduction abnormalities.
Antihelminthic treatment may result in pericystic inflammatory reaction which might worsen the clinical state.
7,8) CT defined the extent of the patient's cystic lesions and provided detail of the pericystic
osseous expansion and wall thinning.
Inflammation becomes apparent as contrast-enhancement and pericystic edema.
27) A temporary increase in pericystic inflammation is often observed during treatment, as the dying parasite can no longer escape host defenses.
On T2-weighted images, four of the lesions showed peripheral ring-like hypointensity representing pericystic