Primary Retroperitoneal Cystic Neoplasm- Case Report

Most retroperitoneal tumours arise from kidneys, adrenals, pancreas. In primary retroperitoneal tumours, lymphomas and mesenchymal neoplasms are more common. Cystic neoplasm of retroperitoneum is uncommon. Malignant tumours are seen more often than benign lesions. Metastatic disease in retroperitoneum is usually recurrence of a urological or gynaecological tumours. Primary retroperitoneal tumours are rare tumours and these tumours account for 0.1% - 0.2% of all malignancies.1 In our institution we had an interesting cystic neoplasm in the retroperitoneum.