The Carter administration said anew yesterday that there are no plans for the former shah of Iran to return to the United States for medical treatment.

A statement read to reporters by a spokesman, who did not permit use of his name, said there are no plans for such treatment here "on the part of the United States or on the part of the shah."

Sources said the administration has been under renewed pressure from friends of the deposed monarch to permit him to return here or to go to a U.S. medical facility in the Canal Zone for surgery to remove his enlarged spleen.

The administration has resisted, believing that satisfactory medical arrangements can be made in Panama and that the shah's return to U.S. territory would seriously complicate efforts to obtain release of the American hostages in Tehran.

White House chief of staff Hamilton Jordon and several other officials are in Panama seeking to work out the arrangements for surgery on the deposed shah, Mohammad Reza Phalavi. Washington sources said progress is being made in these discussions.

Both Carter administration officials and medical sources, however, said the details of the operation have not yet been settled.

Jordan has made previous trips to Panama during this latest series of discussions about the shah's health problems, according to sources here. On this trip, which began late Thursday, he is accompanied by Arnold L. Raphel, special assistant to Secretary of State Cyrus R. Vance and a State Department focal point for information on the Iran crisis.

Also involved in the discussions, according to the sources, are U.S. Ambassador to Panama Ambler Moss and Abelardo Valdez, U.S. chief of protocol.

The Associated Press, quoting sources close to the Panamanian government, reported that the White House chief of staff has gone to a remote mountain retreat owned by Gen. Omar Torrijos, head of Panama's national guard and the country's most powerful figure. Torrijos was Jordan's key contact in the earlier negotiations that led to the former shah's move from the United States to Panama last Dec. 15.

[NBC News reported that the shah plans to leave his exile home in Panama in a matter of days for an undisclosed destination to undergo the operation against the wishes of the Carter administration. NBC's report from Washington indicated that the shah will not be operated on in a U.S. military hospital and that part of Jordan's mission is aimed at persuading the shah to undergo surgery in a Panama hospital.]

The hostage crisis with Iran, which enters its 21st week today, was among the most important subjects reported to have been discussed yesterday in a day-long meeting at Camp David, Md., of President Carter and his senior foreign policy advisers.

Administration officials said the meeting, which lasted from 10:30 a.m. to 4 p.m., was attended by Vice President Mondale, Secretary of State Vance, Secretary of Defense Harold Brown, national security affairs adviser Zbigniew Brzezinski and Gen. David Jones, chairman of the Joint Chiefs of Staff.

Other matters on the agenda in the global review, according to administration sources, included the forthcoming trip here by Egyptian and Israeli leaders as part of their negotiations on Palestinian autonomy, and the western reaction to the Soviet invasion of Afghanistan.

Washington officials discounted suggestions by Iranian Foreign Minister Sadegh Ghotbzadeh in a recent interview that Washington Post correspondent Jonathan Randal that the former shah may be about to leave Panama for Egypt.

Of Ghotbzadeh's statement that removing the shah from Panama would have a "disastrous effect" in Iran, an administration spokesman declared: "We continue to hold Iranian authorities responsible for the safety of our people and they fully understand that."

Officials here declined to comment on charges by Ghotbzadeh that former secretary of state Henry A. Kissinger and David Rockefeller, chairman of the Chase Manhattan Bank, are seeking to remove the shah from Panama. Sources here would not identify who was behind the recent pressures for the ex-shah to return here, but they said those involved included some of the same people who backed the original entry of the former monarch for medical treatment last October. Kissinger, Rockefeller and New York attorney John McCloy were active then on the shah's behalf.

It was the presence of the former shah in this country that led to the seizure of the U.S. Embassy and American diplomatic personnel there by Iranian militants last Nov. 4.

The medical and political dispute about additional surgery for the shah involves who will do the operation as well as where it will be performed. Texas heart specialist Michael DeBakey and a team of American doctors have been to Panama to consult on the case.