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Rothmund–Thomson Syndrome

  • Hideo KanekoEmail author
Chapter

Abstract

Rothmund–Thomson syndrome is an autosomal recessive genetic disorder which is characterized by poikiloderma of the face, small stature, sparse scalp hair, juvenile cataracts, radial aplasia, and predisposition to cancers. Facial redness is particularly characteristic of this syndrome with redness gradually spreading over the four limbs. The redness appears within a year of birth and then progresses to poikiloderma. The causative gene for Rothmund–Thomson syndrome is RECQL4, which is essential for genetic replication and repair. RECQL4 mutations are found in approximately 60% of all patients with Rothmund–Thomson syndrome. Some researchers classify Rothmund–Thomson syndrome with RECQL4 mutations as type II and that without RECQL4 mutations type I. Rothmund–Thomson type I is characterized by poikiloderma, ectodermal malformation, and juvenile cataracts, whereas Rothmund–Thomson type II is characterized by poikiloderma, congenital bone defects, the complication of osteosarcoma in infancy, and the complication of skin cancer with aging.

Keywords

Rothmund–Thomson syndrome RAPADILINO syndrome Baller–Gerold syndrome RECQL4 Poikiloderma Osteosarcoma 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  1. 1.Department of Clinical ResearchNational Hospital Organization, Nagara Medical CenterGifuJapan

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