1 Laboratory for Investigative Dermatology, The Rockefeller University, 1230 York Ave, New York, NY 10021
2 Institute of Human Genetics, University of Heidelberg, Im Neuenheimer Feld 328, 6900 Heidelberg, West Germany
We, Arleen D. Auerbach, USA, and Traute M. Schroeder, West Germany, call upon our colleagues to cooperate with us in order to establish and maintain an International Registry of all known Fanconi anemia (FA) patients. Clinical diagnosis of FA is often difficult to establish due to phenotypic diversity of patients and the occurrence of other disorders that manifest some of the features of FA. Diagnosis may be confirmed by the use of a cytogenetic method based on the sensitivity of FA lymphocytes, fibroblasts, and amniotic fluid cells to chemically induced chromosome breakage (Auerbach, Adler, and Chaganti: Pediatrics 67:128, 1981).