[Amputation neuroma mimicking common bile duct cancer: a case report].

Amputation neuroma or traumatic neuroma is a tumor-like secondary hyperplasia that may develop after an accidental or surgical trauma. Amputation neuroma of the bile duct has occasionally been reported which occurred in the cystic duct stump late after the cholecystectomy. However, even if the amputation neuroma is suspected in a patient with late-onset jaundice after cholecystectomy, the differential diagnosis from a malignancy is difficult preoperatively.

A prospective evaluation of 18F-FDG and 11C-acetate PET/CT for detection of primary and metastatic hepatocellular carcinoma.

Unlabelled: Because (18)F-FDG PET has insufficient sensitivity for the detection of hepatocellular carcinoma (HCC), (11)C-acetate PET has been proposed as another technique for this use. We prospectively evaluated the value of PET/CT using these 2 tracers for the detection of primary and metastatic HCC.

Methods: One hundred twelve patients (99 with HCC, 13 with cholangiocellular carcinoma) underwent biopsy and (18)F-FDG and (11)C-acetate PET/CT.

[Five-year survival analysis of a cohort of hepatocellular carcinoma patients who treated at the National Cancer Center, Korea].

Background And Aims: We investigated the five-year survival outcomes of a large cohort of hepatocellular carcinoma (HCC) patients who were treated at a single institute, and this is a follow-up study of a previous report.

Methods: Nine hundred four HCC patients who were treated at the National Cancer Center Korea were enrolled and they were followed till February 2007.

Results: The mean age of the patients was 56.

Survival analysis of 904 patients with hepatocellular carcinoma in a hepatitis B virus-endemic area.

Background And Aim: To investigate the clinical characteristics and survival outcomes of a large cohort of hepatocellular carcinoma (HCC) patients treated at a single institute in a hepatitis B virus (HBV)-endemic area.

Methods: Between 2000 and 2003, 904 patients with HCC treated at our institute were enrolled, and followed until 2005.

Results: The mean age of the patients was 56 years and 76.

Optimization of wet radiofrequency ablation using a perfused-cooled electrode: a comparative study in ex vivo bovine livers.

Objective: To determine the optimized protocol for wet monopolar radiofrequency ablation (RFA) using a perfused-cooled electrode to induce coagulation necrosis in the ex vivo bovine liver.

Materials And Methods: Radiofrequency was applied to excised bovine livers in a monopolar mode using a 200W generator with an internally cooled electrode (groups A and B) or a perfused-cooled electrode (groups C, D, E, and F) at maximum power (150-200 W) for 10 minutes. A total of 60 ablation zones were created with six different regimens: group A-dry RFA using intra-electrode cooling; group B-dry RFA using intra-electrode cooling and a pulsing algorithm; group C-wet RFA using only interstitial hypertonic saline (HS) infusion; group D-wet RFA using interstitial HS infusion and a pulsing algorithm; group E-wet RFA using interstitial HS infusion and intra-electrode cooling; and group F-wet RFA using interstitial HS infusion, intra-electrode cooling and a pulsing algorithm.

Electron paramagnetic resonance study reveals a putative iron-sulfur cluster in human rpS3 protein.

The human ribosomal protein S3 (rpS3) functions as a component of the 40S subunit and as a UV DNA repair endonuclease. This enzyme has an endonuclease activity for UV-irradiated and oxidatively damaged DNAs. DNA repair endonucleases recognize a variety of UV and oxidative base damages in DNA from E.