A case of biliary cystadenocarcinoma with malignant seeding of the tract after percutaneous catheter drainage.

Biliary cystadenocarcinoma is rare tumor that originates from the hepatobiliary epithelium, and its clinical diagnosis is difficult during the preoperative course. A 65-year-old woman with biliary cystadenocarcinoma was misdiagnosed as hepatic abscess and underwent ultrasonography-guided percutaneous catheter drainage. Ten months later, the patient was re-admitted to our department with a mucin-producing cauliflower-like mass measuring 10x10x5 cm³ at the site of puncture.

Determination of rhodium by resonance light-scattering technique coupled with solid phase extraction using Rh(III) ion-imprinted polymers as sorbent.

A resonance light-scattering method (RLS) for the determination of Rh(III) was initially developed, based on the reaction among Rh(III), WO4(2-) and ethylrhodamine B. The method possesses high sensitivity, but lacks selectivity. Therefore, a Rh(III) ion-imprinted polymer (IIP), prepared by precipitation polymerization using 2-(allylthio)nicotinic acid (ANA) as functional monomer, was used as sorbent to construct a ion-imprint based solid-phase extraction (IIP-SPE) method for separation of rhodium from complicated matrices prior to its determination by RLS.

[The prevention of hepatolithiasis and biliary stricture post choledochojejunostomy].

Objective: To investigate the prevention of hepatolithiasis and biliary stricture post choledochojejunostomy using choledochoscopy technique and evaluate feasibility and efficacy of choledochojejunostomy and artificial valve of efferent loop in preventing reflux.

Methods: To analyze the data of 47 patients with hepatolithiasis who had been operated with Roux-en-Y cholangiojejunostomy and artificial valve of efferent loop to prevent bilio-intestinal regurgitation. Of the patients, 19 were marked with silver nip at the jejunum export of bilio-intestinal anastomosis.