An Egyptian doctor who hid a Jewish woman in a cabin he owned in Berlin during World War II has become the first Arab honored as part of the “Righteous Among the Nations” by Yad Vashem, Israel’s Holocaust memorial. Starting in 1942, the doctor, Mohamed Helmy, provided the cabin to one of his patients, Anna Boros, then 21, and also helped her mother, stepfather and grandfather survive the war, according to a news release Yad Vashem issued Monday. He was aided by a German woman, Frieda Szturmann, who also has been added to the “Righteous” group, now more than 24,800 people from nearly 50 countries. “I will be grateful to him for eternity,” Ms. Boros wrote of Dr. Helmy after the war. She moved to Brooklyn and died in the 1980s, according to Yad Vashem. Dr. Helmy died in 1982.