Radiation Therapy Services Holdings, Inc. (RTSX) SEC Filing 10-K Annual report for the fiscal year ending Friday, December 31, 2010

Exhibit 99.1

RADIATION THERAPY SERVICES HOLDINGS, INC.

Radiation Therapy Services Holdings, Inc. Reports Fourth Quarter

and Fiscal Year 2010 Financial Results

2010 Highlights:

·                  Acquisitions of a Myrtle Beach, South Carolina-based radiation therapy facility and four physician practices, expanding into new market

·                  Issued $310.0 million of Senior Subordinated Notes in April 2010; completed exchange offer for Senior Subordinated Notes in January 2011

·                  Completed advanced technology upgrades in six key markets

·                  Selected by key academic medical centers to serve as Developer and Managing Partner of first Proton Beam Radiation Therapy Center in New York

·                  2011 Physician Fee Schedule results in stable to slightly favorable reimbursement environment

·                  Strengthened management team with appointments of new CFO and COO

FORT MYERS, FL, February 28, 2011 —

For the fourth quarter of 2010, total revenues were $137.5 million and the net loss was $102.3 million.  For fiscal year 2010, total revenues were $544.0 million and the net loss was $113.8 million. The quarterly and annual net losses were due primarily to goodwill impairment charges in certain financially distressed markets.

“We finished 2010 with many accomplishments despite continued challenging economic conditions,” said Dr. Daniel Dosoretz, President and Chief Executive Officer.  “As a

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