ABSTRACT
Sixty years have passed since the atomic bombing of the Japanese cities of Hiroshima and Nagasaki in August of 1945. A number of reports relating to atomic bomb-induced tumors have been published (Shimizu et al., 1989; Shimizu et al., 1990). Acute leukemia (Folley, Borges and Yamasaki, 1952; Ichimaru, Ishimaru and Belsky, 1978; Ichimaru et al., 1991), thyroid cancer (Socolow et al., 1963; Wood, Tamagaki and Neriishi, 1969; Ezaki, Takeichi and Yoshimoto, 1991), breast cancer (Wanebo et al., 1968), lung cancer (Mansur et al., 1968), gastric cancer (Ito, Hasegawa and Kumasawa, 1984; Ito et al., 1989), colon cancer (Nakatsuka and Ezaki, 1986) and skin cancer (Sadamori, Mine and Hori, 1989) have increased in incidence and are related to the exposure doses by the atomic bomb. Furthermore, multiple myeloma, esophageal cancer, salivary gland cancer, urinary tract cancer, ovarian cancer, and malignant lymphoma are candidates as possible tumors from this radiation because the incidences have increased since atomic bombing.
