[Rothmund-Thomson's syndrome--a case demonstrating prominent hyperkeratosis and literature review].

A patient, 21-year-old japanese man demonstrating many of the changes seen in the Rothmund-Thomson's syndrome is presented. In particular the hyperkeratosis palmo-plantar hyperkeratosis and warty hyperkeratosis on the hand and feet are prominent clinical features in this patient. The literatures describing hyperkeratosis in the Rothmund-Thomson's syndrome are reviewed and the clinical feature as well as diagnostic value of the hyperkeratosis is discussed.