title: Primary retroperitoneal tumours a 25 year study.
abstract: Primary retroperitoneal neoplasia is not a common condition. Out of the 34 tumours analysed in the present study 15 were germ cell tumours, 10 were soft tissue tumours and 9 were tumours of the sympathetic nervous system. Among the 15 germ cell tumours, 9 were mature teratomas while there were 2 each of immature teratoma, embrayonal carcinoma and dysgerminoma. Out of the 10 soft tissue tumours 9 were sarcomas with 5 liposarcomas, 3 leiomyosarcomas and 1 neurogenic sarcoma. The only benign soft tissue tumour was a lipoma. The 9 tumours of the sympathetic nervous system included 7 neuroblastomas and 2 ganglioneuroblastomas. Overall, in the present series majority of the primary retroperitoneal tumours (22 out of 34 i.e. 70.6%) were malignant tumours.
authors.affiliation: Pathology Dept, Kasturba Medical College, Mangalore.
authors.forename: M R
authors.initials: MR
authors.lastname: Pai
authors.forename: R
authors.initials: R
authors.lastname: Naik
authors.forename: C V
authors.initials: CV
authors.lastname: Raghuveer
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms