RT Book, Section A1 Bissonnette, Bruno A1 Luginbuehl, Igor A1 Marciniak, Bruno A1 Dalens, Bernard J. SR Print(0) ID 58069575 T1 Ectodermal Dysplasia T2 Syndromes: Rapid Recognition and Perioperative Implications YR 2006 FD 2006 PB The McGraw-Hill Companies PP New York, NY SN 9780071354554 LK accessanesthesiology.mhmedical.com/content.aspx?aid=58069575 RD 2024/04/24 AB Ectodermal dysplasia is a rare group of inherited disorders. It was first described by Charles Darwin in 1875. The disorders arise from disturbances in one or more ectodermal structures and their accessory appendages. The absence, or deficient function, of at least two derivatives of the ectoderm constitutes a form of ectodermal dysplasia. Each combination of defects represents another type of ectodermal dysplasia and has a specific name. At least 150 different forms of ectodermal dysplasia have been identified; some of the most common are presented here.