RT Book, Section A1 Choate, Keith A. A1 Milstone, Leonard M. A2 Kang, Sewon A2 Amagai, Masayuki A2 Bruckner, Anna L. A2 Enk, Alexander H. A2 Margolis, David J. A2 McMichael, Amy J. A2 Orringer, Jeffrey S. SR Print(0) ID 1162814911 T1 The Ichthyoses T2 Fitzpatrick's Dermatology, 9e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071837798 LK dermatology.mhmedical.com/content.aspx?aid=1162814911 RD 2024/04/18 AB AT-A-GLANCEThe ichthyoses are a heterogeneous group of skin diseases characterized by generalized scaling, and often areas of thickened skin.Most types are inherited, and these usually present at birth or appear in childhood; however, some forms are acquired.Scales may vary in size, color, and body site.The may be accompanied by erythema, abnormalities in adnexal structures, and palmoplantar keratoderma.The may be associated with systemic findings, such as failure to thrive, increased susceptibility to infection, atopic dermatitis, neurosensory deafness, and neurologic and other disease.Histopathology is usually nonspecific with few notable exceptions.Early genetic testing can aid in the diagnosis and anticipation of potential systemic abnormalities.