[Clinical diagnosis of orbital rhabdomyosarcoma in a child].

The authors present data on problems associated with the diagnosis of orbital rhabdomyosarcoma in children. They analyze a ten-year period during which they verified in a department of child ophthalmology the disease in four children. The presence of the tumour is one per 60,000 out-patient examinations and during the follow-up period it had a seven times rarer incidence than retinoblastoma. The authors emphasize the varied clinical picture of the tumour and its differential diagnostic pitfalls and the possibility of mistaking temporarily the tumour for inflammatory or post-traumatic orbital changes. The authors remind of the necessity to consider the possible presence of rhabdomyosarcoma in all rapidly growing tumourous orbital processes, in particular in young children.