A case with bloom syndrome

Abstract

BS is a rare, autosomal recessive disorder characterized by telangiectasias, photosensitivity, growth deficiency of prenatal onset, immunodeficiency, increased susceptibility to malignancies and diabetes mellitus. There is an increased risk of developing neoplasia at early ages. Chromosomal fractures and an increase in sister chromatid exchanges are observed in BS that presents prominent genetic instability. A sixteen year old boy applied to our clinic with complaint of erythema on his face having existed since infancy. In physical examination of the patient in whom growth retardancy has been determined, a narrow, long face, prognatism, an erythematous telangiectatic blanchable patch involving malar areas, nose, forehead, and temples have been established. The patient whose sister chromatid exchange number was determined as 107/cell in cytogenetic analyse, was cited as BS together with his phenotypic findings. The patient has been taken into follow-up in terms of cancer risk and the family was genetically informed.