LOS ANGELES (AP) - Britney Spears is not yet fit to participate in court proceedings in her conservatorship case, her lawyer told a Los Angeles Superior Court commissioner Thursday.

Samuel Ingham, Spears' court-appointed attorney, and attorneys for the pop star's father and conservator, James Spears, spent 90 minutes in Commissioner Reva Goetz' chambers.

Ingham told the court afterward that Spears' medical condition is ''fluid'' because her treatment is changing.

Spears' probate case is scheduled to go to trial July 31, but Ingham said it could be ''harmful'' for her to participate. Goetz agreed and said Spears' diagnosis is not complete.

The 26-year-old singer and her estate have been under the conservatorship of her father for four months.

-Britney Spears Pictures

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