Pattern of childhood malignant tumours in a teaching hospital in south-western Nigeria.

Objective: To document general baseline data on the patterns of childhood malignant tumours at a teaching hospital in south-western Nigeria.

Design, Setting And Participants: A retrospective study of childhood malignancy at Olabisi Onabanjo University Teaching Hospital, Sagamu, Nigeria, during an 11-year period, from January 1996 to December 2006.

Results: 77 children were diagnosed with malignant tumours (an average of seven diagnoses per year); 46 were boys (60%), giving a male-to-female ratio of 1.