Lege Artis Medicinae

[A RARE, HISTOLOGICALLY COMPLEX LIVER TUMOUR]

HIDVÉGI Judit, BAJTAI Attila, VARGA Árpád

FEBRUARY 22, 2007

Lege Artis Medicinae - 2007;17(02)

[INTRODUCTION - Among the primary malignant tumours of the liver, hepatoblastoma is extremely rare in adults in contrast to its frequency in children. Only 23 such cases have been published to date. Mixed tumour of the liver and carcinosarcoma of the liver are used as synonyms for adult hepatoblastoma. The tumours have both mesenchymal and epithelial components (hepatocellular or cholangiocellular carcinoma) with focal bone and/or cartilage formation. CASE REPORT - A 78-year-old woman was admitted to the surgery department with increasing anaemia and persistent abdominal pain. An emergency operation was performed. Her peritoneal cavity was filled with blood due to the rupture of a tumour that occupied the right lobe of the liver. The neoplasm could only be removed partially. Despite an intensive care, the patient's state could not be stabilized and she died a day after the operation. The histological diagnosis was carcinosarcoma of the liver with an AFP- and cytokeratin-positive epithelial component and a spindle cell component positive for vimentin. The osteogen sarcoma found in the tumour was strongly positive for the S-100 protein. DISCUSSION - The authors review the hypotheses for the formation of adult primary hepatoblastoma, a combined tumour, they describe their various types and the immunohistochemical tests that are used in their identification.]

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Lege Artis Medicinae

[CARDIOVASCULAR EFFECTS OF SULFONYLUREAS]

NIESZNER Éva, BARANYI Éva, PRÉDA István

[Sulfonylureas, used as base therapy in type 2 diabetes, specifically block ATP-dependent potassium channels (K+ ATP). While in pancreatic beta cells these channels have an essential role in insulin release, they are also involved in cardiovascular adaptive mechanisms. Ion channels with similar morphology may have different pathophysiological effects in the human body. This raises the question, is it necessary to count with some damage to the cardiovascular protective mechanism when using sulfonylurea to induce insulin secretion. Is this indeed a relevant clinical problem today? The answer may lay in the different organ-specific effects of sulfonylureas.]

Lege Artis Medicinae

[Altering cannabinoid signaling during development disrupts neuronal activity]

Lege Artis Medicinae

[For Geriatrists]

dr. IMRE Sándor

Lege Artis Medicinae

[THE ROLE OF ENZYME REPLACEMENT THERAPY IN PANCREATIC DISEASES ASSOCIATED WITH MALDIGESTION]

TAKÁCS Tamás

[The pancreas synthesizes and secretes more than 20 digestive enzymes that hydrolyze the major nutritive components, i.e., carbohydrates, fat and protein, within the lumen of the small bowel. In several pancreatic diseases the secretory capacity of the pancreas gradually decreases and the release of pancreatic juice becomes blocked resulting in the characteristic symptoms of maldigestion. Pancreas-associated maldigestion is most often caused by chronic pancreatitis, which can be diagnosed primarily by imaging beside history and clinical symptoms. There is no decisive serological test. The goal of the treatment of pancreatic insufficiency is to reduce symptoms (bloating, abdominal pain, weight loss, and, most importantly, steatorrhea) and improve digestion. One way to do this is to replace pancreatic enzymes. The efficiency of the available enzyme preparations can be increased by the improvement of lipase activity.]

Lege Artis Medicinae

[THE DIFFERENTIATION OF CHRONIC PANCREATITIS FROM PANCREATIC CANCER]

CZAKÓ László

[The poor prognosis of pancreatic cancer is mainly due to late diagnosis. The differentiation between pancreatic cancer and chronic pancreatitis is difficult, because the two diseases cause similar clinical symptoms and morphological alterations. Furthermore, chronic pancreatitis is associated with an increased risk of malignant transformation, thus the two diseases may be present simultaneously. The recent developments in molecular genetic tests and in imaging techniques, such as multidetector computed tomography, magnetic resonance cholangio- pancreatography, endoscopic ultrasoundguided fine needle aspiration and positron emission tomography/computed tomography, have fundamentally transformed the differentiation of the two disorders. This paper provides a systematic review of the recent evidence-based results concerning the differentiation of pancreatic cancer and chronic pancreatitis.]

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