Cystic Ovarian Mucinous Carcinoma With Carcinosarcomatous Mural Nodules: An Uncommon Entity

Mural nodules in ovarian mucinous cystic tumors are uncommon, with only 80 cases reported over the last 30 yr. The literature describes only 5 cases of carcinosarcomatous mural nodules with mucinous ovarian neoplasm. We compared and summarized the literature related to mural nodules in mucinous ovarian tumors to elaborate on the clinical and histomorphologic features. A 21-yr-old woman presented with 2 mo history of abdominal distension. Physical examination showed a palpable pelvic mass. Radiologic investigation showed a 31x18.6x25 cm large right ovarian cyst. Few nodular solid masses were also seen, the largest mass measured 3.5x3.1 cm. On histomorphology and immunohistochemistry, it was a mucinous ovarian carcinoma with carcinosarcomatous mural nodules. Carcinosarcomatous mural nodules with ovarian mucinous neoplasm affects younger females. It presents at an early stage and does not carry an adverse prognosis.