Giant Hepatic Cyst with Septal Structure: Diagnosis and Management

Table 1

Comparison of simple cyst, and complicated cyst and biliary cystadenocarcinoma.

	US	CT	MRI
Simple cyst	Monolocular; Anechoic lesion with increased through transmission of sound; No structure	Uniformly water-density; Smooth thin walls; No structure; No enhancement	T1WI: homogeneously hypointensity; T2WI: homogeneously hyperintensity; No structure; No enhancement
Complicated cyst	Honeycomb pattern; Increased echo levels of cystic fluid	Mural nodularity; Various thickness of the walls; Unclear boundary; Usually no enhancement	T1WI: various intensity; T2WI: hyperintense; Septal and/or nodular structures; Usually no enhancement
Biliary; cystadenocarcinoma	Multilocular; Septal and/or Nodular structures	Uneven for every locular; Thick fibrous capsule; Solid tumor component; Increased contrast uptake	T1WI, T2WI: various intensity; Septal and/or nodular structures; Increased contrast uptake

T1WI: T1-weighted imaging,T2WI: T2-weighted imaging.