Enteric Intussusception Presenting as a Rapidly Enlarging Mass

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/73172/1/j.1572-0241.1986.tb01528.x.pd

Quantitative analysis of cell types during growth and morphogenesis in Hydra

Tissue maceration was used to determine the absolute number and the distribution of cell types in Hydra. It was shown that the total number of cells per animal as well as the distribution of cells vary depending on temperature, feeding conditions, and state of growth. During head and foot regeneration and during budding the first detectable change in the cell distribution is an increase in the number of nerve cells at the site of morphogenesis. These results and the finding that nerve cells are most concentrated in the head region, diminishing in density down the body column, are discussed in relation to tissue polarity

Group G streptococcal arthritis and bowel disease: A rare enteropathic arthropathy

Group G streptococci may be seen as normal flora in many parts of the body, including the gastrointestinal tract. They are rarely pathogens in humans, but they have been isolated from septic joints in debilitated patients. Three patients with group G streptococcal arthritis were further evaluated using contrast studies of the colon. Abnormalities, including an occult carcinoma and a colocutaneous fistula, were found. We conclude that group G streptococcal arthritis may be associated with gastrointestinal abnormalities that allow a portal of entry for an otherwise innocuous organism, and that this represents a rare enteropathic arthropathy.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/48136/1/261_2005_Article_BF01885157.pd