Hyperspectral imaging of cuttlefish camouflage indicates good color match in the eyes of fish predators.

Camouflage is a widespread phenomenon throughout nature and an important antipredator tactic in natural selection. Many visual predators have keen color perception, and thus camouflage patterns should provide some degree of color matching in addition to other visual factors such as pattern, contrast, and texture. Quantifying camouflage effectiveness in the eyes of the predator is a challenge from the perspectives of both biology and optical imaging technology.

Risk factors for immediate prosthetic postmastectomy reconstruction.

The charts of 44 women who underwent 47 immediate postmastectomy prosthetic breast reconstructions (IPMPBR) with subpectoral prostheses (long-term implant, long-term expandable implant or tissue expanders followed by long-term prosthetic placement) were retrospectively reviewed. Follow-up was from 3 to 49 months (median 18 months). Patient ages ranged from 31 to 77 years (median 42) but 82 per cent were under 60 years old.

Gastric mucosal blood flow and Escherichia coli bacteremia.

The specific changes in gastric blood flow during sepsis are controversial. Previous investigations of intragastric blood flow using endotoxin models revealed decreased total gastric blood flow and decreased gastric mucosal blood flow. Endotoxin models are now thought to be inadequate due to the accompanying depression of the systemic circulation.

Hemangiopericytoma of the colon: report of a case and review of literature.

A patient with a hemangiopericytoma of the colon is discussed. This is the second such case reported in the English medical literature. Soon after discovery of the tumor, the patient presented with a colonic intussusception with the tumor serving as the lead point.