Chronic Lymphocytic Leukemia in a Family, Including Twin Brothers and a Son

In 1929 one of us and co-workers reported the cases of identical twin brothers, aged 56, both of whom died of chronic lymphocytic leukemia within 68 days of each other. 1 The second brother was first seen two months after the death of the first, and his appearance and the physical findings were so strikingly like those of his twin that we then commented that it seemed as though the dead had returned to life. We have recently had the startling experience of witnessing yet another revival in the same family, as one of the sons of the second twin brother presented himself for examination at the age of 53, also with the obvious diagnosis of chronic lymphocytic leukemia. Report of a Case The son, aged 53, noted lumps in the neck and axillas and increased sweating in July, 1954. In February, 1955, he began to tire easily and lost