The holder of the winning Mega Millions lottery ticket purchased in Maryland presented it Monday at lottery headquarters, officials said. But little other information was available about the ticket, which has spawned rumor, speculation and at least one lawsuit.

The nine-figure prize “was claimed today,” said Carole Everett, a spokeswoman for the Maryland Lottery. But she said the winner has indicated a wish to remain anonymous.

Nevertheless, the lottery agency will hold a news conference Tuesday, Everett said. Even without identifying the winner by name, she said, “we have a wonderful story.”

The after-taxes lump-sum value of the winning ticket is more than $105 million, Everett said. The winning ticket was bought the day of the drawing at a convenience store in Millford Mill, in Baltimore County.

Three winning tickets were sold nationally in the drawing, which offered a record $656 million payout. One ticket was bought in Kansas and another in Illinois.

Last week, nationwide attention focused on Mirlande Wilson, 37, of Baltimore, who appeared at a news conference after reportedly claiming to have the winning ticket.

An attorney for her said Monday that he did not know whether Wilson was the person who presented the ticket. But he said a lawsuit has been filed against her by someone who contributed to a fund she used to purchase tickets. The suit seeks a share of the winnings.

“This thing has kind of snowballed,” said Edward Smith Jr., the lawyer.