RESUMO
Leiomyomas or fibroids are most common uterine tumours and are often associated with pregnancy. There is a common belief that uterine growths increase in size during pregnancy.Giant uterine leiomyoma going retroperitoneally concomitant with pregnancy, is a rare clinical entity, a diagnostic dilemma and a great surgical challenge.We hereby, describe a case of giant retroperitonial tumour complicating the pregnancy. A massive tumor of approximately 40cm x 35 cm, unencapsulated, fleshy and 'sarcomatoid' in consistency with increased vascularity occupying entire retroperitoneum was seen.Retroperitoneally tumour was dissected from bilateral ureters, inferior vena cava, aorta and bilateral iliac vessels. Uterus, both ovaries and cervix along with tumour mass was removed.The tumour mass weighed 8 kg and on histopathology a degenerated leiomyoma was diagnosed. I