Findings from a recent study of soldiers wounded in the Iraq and Afghanistan wars support the theory that brain injury from a blast is so unique that it may be a newly uncovered disease.  Read more:  

Overview:

USA Today:  http://www.usatoday.com/news/military/2011-06-01-brain-injury-troops_n.htm

New York Times:  http://www.nytimes.com/2011/06/02/health/02brain.html

New England Journal of Medicine:

Article findings:   http://blogs.nejm.org/now/index.php/nejm-detection-of-blast-related-traumatic-brain-injury-in-u-s-military-personnel/2011/06/01/

Accompanying editorial:  http://www.nejm.org/doi/full/10.1056/NEJMe1102187