Children are not merely little adults, and the diseases they have are not merely variants of adult diseases (1,2). Pediatric neoplasm as a group causes more deaths in children than any other disease (2) .Histologically many of the malignant pediatric tumors are unique, with primitive (embryonal) microscopic appearance and exhibit features of organogenesis specific to the sites of tumor origin, so they are frequently designated as blastomas (1,2) .We managed to collect- 175 - cases of solid pediatric tumors
1-To identify different histopathological types of solid pediatric tumors .
2-To find out their relative frequencies ,sites , age &sex distribution .
3-To compare our results with others.
This is a Prospective study conducted During a period of one year from July 2003 through August 2004; (175) biopsies of children in Mosul with solid tumors were Collected. The surgical specimens were collected from; Al-Salaam teaching hospital, Al-Zahrawi teaching hospital, Al-khansa teaching hospital and few private laboratories.
There were 92 cases (52.57%) of benign tumors and 83 cases of malignant tumors (47.4%).The leading malignant tumors were Lymphomas 20 cases (24.09%), followed by CNS tumors 14 cases (16.8%)
1-Benign tumors are more frequent than malignant ones, with hemangiomas being the prevailing one.
2-Lymphomas constitute the commonest malignant tumors with predominance of non Hodgkin variety.
3-Among the reported tumors with noticeable rise in relative frequency are CNS tumors and Retinoblastomas. This rise may be due to genuine increase in incidence.