Intraductal Implantation of Biliary Neoplasms: A Potential Cause of "Multifocal" Tumors.

Multiple biliary tumors rarely develop in patients without underlying chronic hepatobiliary disease. Those lesions are regarded as multifocal neoplasms if there is no interconnecting dysplasia. This study aimed to determine whether 2 separate tumors in the biliary tract represent true multifocal independent tumorigenesis or intraluminal implantation of a single neoplasm.

Radiofrequency ablation assisted resection for hepatocellular carcinoma: morbidity, mortality and long term survival.

Purpose: Hepatic resection is the mainstay of the curative treatment of primary hepatic tumors, with constantly improving short and long term results. Radiofrequency ablation (RFA)-assisted liver resection is a relatively new method of transection of the liver parenchyma with favorable intra- and perioperative results. The aim of this study was to investigate the oncological efficacy (long term overall survival/OS and disease free survival/DFS) and to confirm the favorable short term morbidity and mortality.

Intraductal papillary mucinous neoplasm (IPMN) and chronic pancreatitis: overlapping pathological entities? Two case reports.

Context: Intraductal papillary mucinous neoplasms (IPMNs) are a recently classified pancreatic neoplasm with an increasing incidence. IPMN is often misdiagnosed as chronic pancreatitis because of symptoms of relapsing abdominal pain, pancreatitis, and steatorrhea and imaging findings of a dilated pancreatic duct of cystic lesions that are frequently confused with pseudocysts. Early recognition of IPMN allows for prompt surgical resection before malignant transformation.

Malignant carcinoid tumor of the cystic duct: a rare cause of bile duct obstruction.

Background: Carcinoid tumors of the extrahepatic biliary tree are extremely rare malignancies, accounting for 0.2%-2% of all gastrointestinal carcinoid tumors, while carcinoids of the cystic duct are an uncommon entity and an extremely unusual cause of bile duct obstruction.

Methods: After an extensive literature review, we retrospectively analysed 61 cases of carcinoid tumor of the biliary tree as well as one additional case of a 60-year-old female with symptoms and laboratory/imaging examination findings compatible with those of a malignant biliary tract obstruction.

Coexistence of hepatocellular carcinoma (HCC) and c-Kit negative gastrointestinal stromal tumor (GIST): a case report.

A past history of sporadic solid cancers is disclosed in 10% of gastrointestinal stromal tumor (GIST) patients. Simultaneous occurrence with other malignancies is encountered in 14 to 16%, but the synchronous occurrence of GIST and hepatocellular carcinoma (HCC) has been reported only once in the English literature. An 81-year-old male patient is presented with a preoperatively known HCC, in whom a synchronous small nodular omental GIST adjacent to the lesser curvature of the stomach was incidentally discovered.

Liver tissue dissection: ultrasonic or RFA energy?

Background: Hepatic resection is the only potential curative treatment for a wide variety of conditions. However, liver surgery is technically demanding and closely associated with a number of serious complications. New devices and techniques are currently being applied in practice, which will improve the surgical outcome.

Radio frequency ablation (RFA)-assisted pericystectomy for hepatic echinococcosis: an alternative technique.

The aim of this study is to describe an alternative technique, using radio frequency energy to perform pericystectomy for hepatic echinococcosis. We present 3 patients with hepatic echinococcosis who were treated with radio frequency ablation (RFA)-assisted pericystectomy. A Radionics Cooltip Radio Frequency System (Tyco, Greece, Radionics) with a single shaft 15 cm long needle electrode and a 2 cm exposure tip, was used.

Unusual metastatic spread of follicular thyroid carcinoma: report of a case.

Concurrent skull and liver metastases from follicular thyroid carcinoma is a very rare event. We herein present the case of a 72-year-old woman who initially presented with a swelling in the right supraorbital region that proved to be metastasis from a well-differentiated follicular thyroid carcinoma of clear-cell type. The metastatic workup disclosed a huge liver metastasis and an additional metastasis in the left iliac fossa.