An 18-page autopsy report on MMA fighter Sam Vasquez was formally filed and presented April 17 by the Harris County Medical Examiner's Office in Texas.

Vasquez died after competing in his third professional bout on Oct. 20, 2007, at a Renegades Extreme Fighting event in Houston's Toyota Center. Dr. Mary L. Anzalone, the Harris County Assistant Medical Examiner, performed the autopsy on Dec. 1, 2007.

The report elaborated on the circumstances of Vasquez's death, which was due to complications of blunt trauma of the head with a subdural hemorrhage, and filed the manner of death as accidental.

A timeline of events was also given.

Vasquez collapsed during the third round of his fight against Vince Libardi, during which the subdural hematoma on the left side of his brain began to develop. The swelling began to shift toward the right side of his brain soon after he was admitted at 9:55 p.m. Oct. 20, studies at St. Joseph Medical Center have confirmed.

The next day Vasquez's hemorrhage was relieved via surgery that required the removal and replacement of a section of his skull. Later, on Nov. 4, he suffered "a sudden decline in neurological status requiring emergent placement" of a catheter that drains cerebral spinal fluid in an attempt to reduce swelling of his brain. A second procedure to reduce swelling was attempted the same day.

After Vasquez showed no improvement, additional life-preserving measures, such as the placement of tracheostomy and gastrostomy tubes, were taken on Nov. 14.

He was discharged to a hospice Nov. 26 and died Nov. 30.

No additional comment has been made by the Medical Examiner's Office or the Texas Department of Licensing and Regulation, which sanctions and presides over MMA bouts.