Colorectal Cancer Screening and Iron Deficiency Anemia.

In the United States, colorectal cancer has the fourth highest amount of annual new cancer cases per year between 2014 and 2018. In this article, the authors review the data and guidelines supporting effective direct visualization and stool-based testing methods of colon cancer screening along with work-up and management of Iron Deficiency Anemia.

Clinicians Beware, Ewing's Sarcoma After 60 Is Elusive and Rare!

Ewing's sarcoma is the second most common malignant bone tumor in children, with the worst outcomes seen in patients over the age of 20. However, the onset of the disease is much less common in people over the age of 30. This case represents the diagnostic dilemma posed by an otherwise "straight forward" case of back pain. Keeping the differential diagnosis sufficiently broad to include bone malignancies, so as not to delay diagnosis and treatment, provides the best chance at a positive outcome.

Detection and source tracking of Escherichia coli, harboring intimin and Shiga toxin genes, isolated from the Little Bighorn River, Montana.

The Little Bighorn River flows through the Crow Indian Reservation in Montana. In 2008, Escherichia coli concentrations as high as 7179 MPN/100 ml were detected in the river at the Crow Agency Water Treatment Plant intake site. During 2008, 2009, and 2012, 10 different serotypes of E. coli, including O157:H7, harboring both intimin and Shiga toxin genes were isolated from a popular swim site of the Little Bighorn River in Crow Agency. As part of a microbial source tracking study, E. coli strains were isolated from river samples as well as from manure collected from a large cattle feeding operation in the upper Little Bighorn River watershed; 23% of 167 isolates of E. coli obtained from the manure tested positive for the intimin gene. Among these manure isolates, 19 were identified as O156:H8, matching the serotype of an isolate collected from a river sampling site close to the cattle feeding area.