Tumors and tumor-like lesions of the jaws, a study of 113 cases in Mosul

During four years period, from 1989 to 1992, 113 cases with tumors or tumor-like lesions of the jaws were reported in Mosul. Based on histogenesis and behavior, the lesions were divided into 11 groups, with 89 cases epithelial odontogenic cysts formed the largest group. Other lesions were trailing well behind. The nearest were benign fibro-osseous lesions of six cases followed by giant cell tumors of five cases and ameloblastoma of four cases. Benign lesions with relative frequency of 97.3% were far more common than malignant tumors, which formed only 2.7% of the total. Throughout the study, fifteen pediatric cases were encountered forming 13.3% of the total

Cancer in the first two decades of life excluding leukaemias: a pathological study of 300 cases in Mosul

At the Department of Histopathology in Mosul Medical College, between the years 1980 and 1987 300 malignant tumours were diagnosed in patients aged 20 years or less. The data concerning their age, sex and tumour pathology were analysed. Of the 300 tumours, 104 [37.4%] occurred between the ages of 15 and 20 years. These were separated from the rest of the 196 cases which were children 0-14 years old. The childhood tumours showed a distribution of 41.3%, 32.7% and 26.0% within the three childhood quinquennia, respectively. Malignant lymphomas were by far the most common tumours encountered in both age groups, forming 45.7% of all malignancies, 48.4% of childhood and 40.3% of adolescent tumours. During childhood, non-Hodgkin's type was more common than Hodgkin's disease in a ratio of 2.95:1- However, at adolescence the ratio dropped to 1.5:1. Other childhood tumours showed relative frequencies in descending order of bone: 10.7%; soft tissue: 10.7%; kidney: 9.2%; adrenals: 8.2%; germ cell: 5.1% and retina 4.6%. During adolescence, the relative frequencies of various tumours encountered, also in descending order, were bone: 18.3%; germ cells: 8.7%; soft tissue: 7.2% and skin 4.9%. The remaining 20% were carcinomas at variable sites including liver, kidney, breast, nasopharynx and lung. Thus it seems that the tumours encountered at adolescence were a mixture of childhood and adulthood varieties