Pyogenic hepatic abscesses: MRI findings on T1- and T2-weighted and serial gadolinium-enhanced gradient-echo images

Liver abscess in children: an overview

“…On magnetic resonance imaging (MRI), LA appears hypointense on T1 weighted, and hyperintense in T2 weighted sequences. [35] Other tests …”

Spectral CT imaging in the differential diagnosis of necrotic hepatocellular carcinoma and hepatic abscess

“…The rapid enhancement of the abscess wall has been attributed to increased capillary permeability. 4 However, HCC usually consists of a significant, rapid enhancement in the AP with a relatively quick washout in the PP due to a feeding hepatic artery. 2 So the iodine concentrations in the AP for the wall of nHCC, reflecting the blood supply from hepatic artery, were higher than those of HA, reflecting the increased capillary permeability.…”

“…2 However, hepatic abscess (HA) is a localized accumulation of pus surrounded by a capsule, resulting from an infectious process of bacterial origin with destruction of the hepatic parenchyma and stroma. 3,4 Accurate diagnosis of the HA has important prognostic and therapeutic implications because of the treatable nature of the lesions and high morbidity and mortality associated with untreated or missed lesions. 4 Although diagnosis of HCC is easier to establish, mainly in relation to improved radiodiagnostic examinations, the tumour may occur under atypical presentations mimicking other benign or malignant processes.…”

“…3,4 Accurate diagnosis of the HA has important prognostic and therapeutic implications because of the treatable nature of the lesions and high morbidity and mortality associated with untreated or missed lesions. 4 Although diagnosis of HCC is easier to establish, mainly in relation to improved radiodiagnostic examinations, the tumour may occur under atypical presentations mimicking other benign or malignant processes. 5 As was reported in previous studies, HCC that develop central necrosis or cyst may mimic the appearance of HA.…”

CT and MRI of Hepatic Abscess in Patients with Chronic Granulomatous Disease

“…Abscesses typically display a thin enhancing rim with liquefied nonenhancing internal contents [1][2][3]. Histology reveals active inflammatory cells in the periphery with necrosis and pus in the center [1,4].…”