The importance of the concept and histological criteria of "intraepithelial squamous cell carcinoma" of the esophagus: in comparison between Western and Japanese criteria.

BACKGROUND: There are differences in the histological diagnostic criteria for early stage gastrointestinal carcinoma between Western and Japanese pathologists. Western histological criteria of carcinoma are "presence of stromal invasion of neoplastic cells", while Japanese criteria are "the degree of cytological and structural abnormality of neoplastic cells, regardless of stromal invasion". The aim of the present study is to clarify and review the present status of the Western and Japanese histological criteria of early stage esophageal squamous cell carcinoma (SCC) and also to clarify their significance and accuracy. METHODS: Twenty-nine Polish, German, and Japanese pathologists participated in this study. A total of 18 histological slides of biopsy, endoscopic submucosal dissection (ESD), and surgical resection of esophageal squamous lesions were diagnosed using a virtual slide system. RESULTS: Most of noninvasive (intraepithelial) carcinomas diagnosed by Japanese pathologists were diagnosed as high- or low-grade dysplasia (intraepithelial neoplasia) or reactive atypia by the majority of Polish and German pathologists. Diagnoses of not only high-grade dysplasia but also low-grade dysplasia or reactive lesion by Western criteria were given for many biopsy specimens of cases in which the corresponding ESD or surgical specimens showed definite stromal invasion. CONCLUSION: There still exist differences in the histological diagnostic criteria for early stage esophageal carcinoma between Western and Japanese pathologists. The Japanese diagnostic criteria could improve agreement of diagnoses between biopsy and resected specimens of esophageal SCC. Moreover, diagnostic approaches using Western criteria may cause delay in the early diagnosis and treatment of esophageal SCC.

Results of screening in Lublin Province, Poland, for colorectal cancer and neoplastic polyps - the role of environmental factors.

INTRODUCTION AND OBJECTIVE: Screening colonoscopy is a recommended tool, and the most sensitive and cost-effective method for reducing the incidence of colorectal cancer (CRC). OBJECTIVE: The purpose of the study was to present the results of a 5-year screening for early detection of CRC carried out among the population of the central-eastern regions of Poland, primarily in Lublin Province. MATERIALS AND METHOD: Screening colonoscopy was conducted in a group of 1,009 patients - 636 women and 373 men, aged 40-65 years. RESULTS: Neoplastic polyps were found in 275 patients, advanced adenomas in 49 patients and adenocarcinoma in 13. 70.55% of neoplastic polyps was located in the distal colon, 18.9% in the proximal part and 10.55% in both regions, advanced adenomas in 79.59%, 8.16% and 12.25%, respectively. Adenocarcinoma was located in the proximal colon in 2 cases and in the distal region in 11 cases. Neoplastic polyps and advanced adenomas occurred significantly more frequently in smokers than in non-smokers. Neoplastic polyps were found statistically more frequent in males than in females, among the overweight and obese patients, than in subjects with normal BMI, and more frequently in the group of urban, compared to rural patients. However, the frequency of advanced adenomas and CRC was not statistically different in those groups. The incidence of CRC was statistically more frequent in males than in females. Smoking and male gender were significant risk factors for developing neoplastic polyps. Male gender seemed to predispose to CRC. Obesity was found to favour advanced adenomas. CONCLUSIONS: The results of screening found neoplastic polyps in every third person (mean) who did not have any symptoms suggestive of colon pathology. Advanced adenomas were found in 5% of the examined and CRC was detected in 1.29% of participants. Smoking, male gender and overweight were significant risk factors for developing neoplastic polyps. No correlation was found between gender and the location of neoplastic polyps and advanced adenomas in the colon.

Asymptomatic gastric heterotopia in the rectum with Helicobacter pylori infection.

Gastric heterotopia is very rare in the rectum - less than 50 cases have been reported so far. Only in six of them Helicobacter pylori has been observed in heterotopic mucosa. We report a case of a 58-year-old woman with asymptomatic gastric heterotopia in the rectum, incidentally revealed during colonoscopy as a small, sessile polyp. The presence of H. pylori was confirmed by immunohistochemistry. This finding supports the opinion that H. pylori may pass along the gastrointestinal tract in a viable form and that the fecal-oral route of transmission is possible.

Hepatomegaly, weight loss and general malaise - the first manifestations of primary systemic amyloidosis.

Amyloidosis is characterised by the accumulation of poorly soluble fibrous proteins in the extracellular space of various bodily organs. Light chain amyloidosis (AL) is recognised as the most common form of systemic amyloidosis. Light chains are deposited in the majority of bodily organs, and accumulation of them in the liver produces hepatomegaly. We report a case of AL-systemic amyloidosis with liver involvement in a 71-year-old woman. Hepatomegaly, weight loss and general malaise were the first manifestations of the disease. Liver biopsy found amyloid deposits along the sinusoids as well as in the space of Disse, inside the vascular wall and in connective tissue of the portal tracts, which showed a positive reaction in Congo Red stain. Further diagnosis showed the presence of systemic amyloidosis. The patient was put on cyclophosphamide and steroid therapy.

Alobar holoprosencephaly with cyclopia - autopsy-based observations from one medical center.

Holoprosencephaly, a major congenital malformation of the brain, consists in a complete or partial failure of the prosencephalon to divide into separate hemispheres. Alobar holoprosencephaly with cyclopia was analyzed on the basis of autopsy reports performed for hospitals admitting patients from the Lublin Region in Eastern Poland in the period of 20 years (1981-2000). The malformation was found in seven newborns - five girls, one boy and one child with sex not established due to agenesia of the genital organs, all autopsied in the years 1990-1999. According to clinical data, none of the mothers (age 24-39 years) was exposed to any prescribed or over-the-counter (OTC) drugs during pregnancy, but one was exposed to paints in early pregnancy. The proboscis was present in four of seven cases. Six of seven children displayed additional congenital malformations. In two cases intrapancreatic accessory spleen suggesting trisomy 13 was found. Alobar holoprosencephaly with cyclopia is a rare lethal congenital anomaly frequently accompanied by other malformations and characterized by large variations in incidence.

The BARD score and the NAFLD fibrosis score in the assessment of advanced liver fibrosis in nonalcoholic fatty liver disease.

BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) refers to a very wide clinical spectrum. Advanced fibrosis that accompanies disease leads to the development of cirrhosis and hepatocellular carcinoma. Thus, identification of patients with advanced fibrosis is essential. The aim of the present study was to compare the usefulness of NAFLD fibrosis and BARD scores in predicting fibrosis in NAFLD and to determine the risk factors of advanced fibrosis. MATERIAL/METHODS: The study included 126 patients with NAFLD. Fibrosis in liver biopsy was scored on a 5-point scale. The BARD and the NAFLD fibrosis scores were compared with the biopsy findings. RESULTS: Liver biopsy revealed 27 patients with advanced and 99 with mild/moderate fibrosis. Advanced fibrosis was statistically significantly more common in older patients with obesity, AST/ALT ratio ≥0.8, diabetes mellitus, and thrombocytes ≤200 × 10³/L. Positive predictive value, negative predictive value and AUROC curve for BARD score, and NAFLD fibrosis score were 68.57%, 96.70%, 0.865 and 70.59%, 98.11%, 0.919, respectively. CONCLUSIONS: Both scores are capable of ruling out advanced fibrosis and markedly reducing the need for liver biopsies in patients with NAFLD. Obesity, diabetes mellitus, thrombocytes ≤200 × 10³/L, advanced age and AST/ALT ratio ≥0.8 are the risk factors of advanced fibrosis.

Colonic adenocarcinoma with numerous paneth and endocrine cells.

Numerous granular eosinophilic cells corresponding to Paneth cells were unexpectedly revealed in a moderately differentiated adenocarcinoma of the hepatic flexure of the colon in a 76-year-old man. These cells were clearly seen in routine slides and their nature was confirmed by Masson's trichrome stain, by immunohistochemical reaction for lysozyme, and by electron microscopy. The tumor contained also cells intermediate between Paneth and goblet cells (with both supranuclear granules and mucous globules), observed in Masson's trichrome stain and in electron microscope. Additionally, immunohistochemical reaction for chromogranin A was performed and irregularly scattered neoplastic endocrine cells were visualized in the tumor. The light microscopic and ultrastructural features of this rare neoplasm are described together with detailed clinical data. The incidence and significance of the Paneth cell and endocrine differentiation in colorectal carcinomas are discussed with the review of the literature.

Rectal adenocarcinoma with osseous metaplasia.

A rare case of osseous metaplasia in a moderately differentiated rectal adenocarcinoma in a 79-year-old man is reported. A possible pathogenesis of this phenomenon is discussed.

Hypoplastic left heart syndrome: morphological study of 21 autopsy cases.

Hypoplastic left heart syndrome is a group of relatively rare congenital malformations associated with severe obstruction of the left outflow tract. Twenty-one cases of Clinical with the syndrome were found in the autopsy files of the Department of Pathomorphology, Medical University of Lublin in the years 1991-2000. Most children were males, delivered at term, with normal body weight. None of them was surgically treated nor survived longer than one month. The most common subtype of valvular malformations included in the syndrome was aortic stenosis with mitral stenosis. In 15 cases microscopic examination revealed: recent myocardial necrosis, interstitial fibrosis and focal calcification. In 6 cases the syndrome coexisted with the congenital malformations of other systems.