RIYADH — Yemeni Parasitic conjoined twins have arrived at King Salman Airbase here on Tuesday from the city of Mukalla in Hadhramaut. Accompanied by parents, the twins — Ahmad Mahaimud —-arrived on board an air ambulance to receive specialist medical treatment in line with the directives of Custodian of the Two Holy Mosques King Salman. Immediately after arrival, they were taken to the King Abdullah Specialist Children's Hospital under the Ministry of National Guard, to undergo medical checkups prior to considering the possibility of conducting the surgical separation procedure. The conjoined twin becomes parasitic when it stops developing in the fetus, and can present severe health problems to the fully developed twin, once born. Ahmed Mahmud and Fatima Salem, the parents of the twins, thanked the Saudi leadership for the warm reception and generous hospitality. They also appreciated the efforts of the Saudi Embassy in Yemen, and the Coalition Forces to Support Legitimacy in Yemen that contributed to their transportation and arrival in the Kingdom. For his part, Dr. Abdullah Al-Rabeah, advisor at the Royal Court and the general supervisor of King Salman Humanitarian Aid and Relief Center (KSRelief) and the head of the medical team, thanked the King and the Crown Prince for this noble humanitarian initiative that comes in the wake of the difficult conditions facing Yemen. "This also reflects the humanitarian role that Saudi Arabia is playing with lending a helping hand to such needy cases of people in dozens of afflicted and poor countries," he said. This is the 108th twins, which came from 21 countries whose cases were studied at the Saudi National Program for the Separation of Conjoined Twins. In the event of the medical opinion gives the go ahead for surgical separation, it will be the 49th surgery performed by the Saudi National Program for Separating Conjoined Twins, which is one of the largest programs for separating conjoined twins in the world.