[Congenital poikiloderma with verrucous hyperkeratosis. An unusual form of Thomson's syndrome?].

A 50 year old male patient suffered from poikilodermatous skin since his 14th year of life. During the past 5 years hyperkeratotic plaques and squamous cell carcinomas developed, leading to metastases into lymph nodes and the lung and fatal outcome. To our knowledge, up to now 6 cases of congenital poikiloderma (Thomson-syndrome, Rothmund-Thomson-syndrome) in conjunction with verrucous hyperkeratosis and squamous cell carcinoma have been reported in the literature.