"Insanely high" levels of testosterone. Twice the next highest ever recorded.
From that article:
Ryan Braun’s original test for performance-enhancing drugs as the playoffs were winding down in October was “insanely high, the highest ever for anyone who has ever taken a test, twice the level of the highest test ever taken,” said a source familiar with the developing case in which Ryan was reported to have tested positive for an elevated level of testosterone caused by a synthetic substance, triggering a possible 50-game suspension.
The never-before-seen ratio, according to the source, is one of several “highly unusual circumstances.”