[Rhabdomyosarcoma: differential diagnosis of cutaneous tumors in childhood].

Primary rhabdomyosarcoma can arise in the skin, but there are few reports on this common childhood malignancy in the dermatological literature. We report on a male infant with a cutaneous tumour growing on the right nasal bridge since his 10th week of life. Clinically the tumour mimicked pilomatrixoma. Histological and immunohistological examination of the skin tumour and of subsequent lymph node metastases revealed rhabdomyosarcoma of the alveolar growth pattern. Our patient died at the age of 4 years of disseminated organ metastases.