Expressing shock over the leaked report, PCB spokesman Sami-ul-Hasan said that tests were conducted by the four-member medical commission at the Shaukat Khanum Hospital at Lahore only because it "had the best equipment".
"We had no idea that they would leak the results. No hospital does it," Hasan said.
The PCB official accused the hospital of resorting to "unethical practice" of leaking the report to the media even before the commission could evaluate it.
State-run PTV went to town citing the report by a team of nuclear physicians of the hospital in its news bulletins on Friday.
The entire report found its way on the front page of a vernacular daily Jung complete with the hospital's logo.
The hospital officials, in turn, blamed Shoaib's brother Shahid for leaking the report to the media.
Shahid was quoted as saying by local daily The News that he had released the report to the media to prove that his brother was "completely committed" to the Pakistan team.
"I just want to stress that Shoiab is completely committed to the Pakistan team. All the success and fame he enjoys is because of the country and the green blazer. There is no way he can think about deliberately letting the team down at any stage of his career," Shahid said.