title: Bloom's syndrome. Possible pitfalls in clinical diagnosis.
abstract: We treated two patients with Bloom's syndrome and conducted extensive endocrine studies. In one patient, we studied longitudinal growth and pubertal development and the effect of exogenous human growth hormone on growth velocity. Establishing a diagnosis of Bloom's syndrome is difficult in clinical practice. Measurement of the frequency of sister chromatid exchanges is essential in patients with growth retardation of intrauterine origin.
mesh_terms: D000293:Adolescent; D001816:Bloom Syndrome / Q000175:diagnosis* / Q000188:drug therapy / Q000235:genetics; D003937:Diagnosis, Differential; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone; D013006:Growth Hormone / Q000627:therapeutic use; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008297:Male; D012854:Sister Chromatid Exchange
chemical_list: D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D013006:Growth Hormone