Macular,papillary and peripapillary perfusion densities measured with optical coherence tomography angiography in primary open angle glaucoma and pseudoexfoliation glaucoma

Graefe's Archive for Clinical and Experimental Ophthalmology - To compare the blood flow situation in primary open-angle glaucoma (POAG) and pseudoexfoliation glaucoma (PXG) using optical...     

Comparison of biopsy urease test and histologic examination for detection of campylobacter pylori in duodenal, antral and fundic biopsies

The presence of Campylobacter pylori was investigated in duodenal, antral and fundic biopsies of 149 consecutive patients undergoing upper gastrointestinal tract endoscopy by biopsy urease tests (CLOtest; "CLO test") and histologic examination ("HIST") after modified Giemsa staining. Positive results were obtained rarely in the duodenum (4.7% and 12.8% by CLO test and HIST, respectively), but equally frequently in antral (48.3% and 62.4%) and fundic biopsies (55.0% and 54.4%). Using combined evaluations ("COMB") of both CLO test and HIST results, and disregarding isolated positive histologic grades "1" as C. pylori negative, the detection rates were 6.0, 53.0 and 56.4% in the above order and 63.1% overall at any of the biopsy sites. There was no close correlation between the rapidity of the color conversion of the biochemical test and the microscopic grading of C. pylori density. A positive CLO test in single antral biopsy specimens was an accurate predictor of the presence of C. pylori as compared with HIST (predictive value positive PVpos 0.97), while negative antral BUT results did not rule out C. pylori colonization of the upper GI tract (PVneg 0.52 compared with HIST). An additional negative CLO test from fundic biopsies increases the PVneg to 0.58.     

Synchronous carcinoid tumors of the colon--a case report

Carcinoids are comprising 0.05 to 0.2% of all malignancies and 0.4 to 1% of gastrointestinal neoplasms. Only about 1 to 3% are located in the colon. Because synchronous colonic carcinoids are extremely rare, a case of a 64-year-old woman is presented. Etiologic, clinical and therapeutic aspects are discussed.     

Metastasis to the colon from primary bronchogenic carcinoma presenting as occult gastrointestinal bleeding--report of a case

A case of colonic metastasis in a 69-year old man detected due to positive fecal blood tests is presented. Histologic and clinical findings suggested bronchogenic small cell carcinoma as the primary tumor. Metastatic involvement of the colon is an unusual feature of primary bronchogenic carcinoma which is rarely recognized during lifetime.