A giant ovarian mucinous cystic neoplasm weighing 8,500 grams with functional stroma. A case report and literature review.

Large ovarian tumors weighing more than 5,000 g are rarely reported in the recent literature because of the improvement in health care systems. Such tumors present many challenges in diagnosis and in surgical approach due to severe circulatory and cardiopulmonary complications. The case of a 27-year-old unmarried patient, who complained of progressive increased abdominal girth of more than six months duration, metrorrhagia, constipation and dysuria is presented. A cystic ovarian tumor weighing 8,500 g (after preoperative fluid aspiration) proved to be a mucinous neoplasm of borderline malignancy with functional stroma. Problems in establishing a correct diagnosis are discussed together with a literature review.