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He spent two weeks in the hospital following complications from a prostatectomy.

Current treatment methods for prostate cancer include androgen ablation, chemotherapy, radiotherapy and radical prostatectomy, but are ineffective against advanced prostate cancers.

Two experts who specialize in prostate cancer surgery said that most men who undergo prostatectomies do not need to return to the hospital in the weeks after that surgery.

He was diagnosed in early December and had what the Pentagon described as a “minimally invasive surgical procedure,” called a prostatectomy, to treat the cancer on Dec. 22.

The Pentagon said earlier this month that Austin had a prostatectomy to treat prostate cancer on Dec. 22, for which he underwent general anesthesia at Walter Reed National Military Medical Center.